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{"workbook":{"problemsBrief":"{\"HDU-6837\":[\"Kirakira\",36,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 6 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6836\":[\"Expectation\",301,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 6 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6835\":[\"Divisibility\",409,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 6 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6797\":[\"Tokitsukaze and Rescue\",512,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+3\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 3 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6830\":[\"Asteroid in Love\",64,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training 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href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+3\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 3 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6834\":[\"Yukikaze and Smooth numbers\",62,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 6 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6833\":[\"A Very Easy Math Problem\",179,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 6 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6799\":[\"Parentheses Matching\",513,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+3\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 3 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6832\":[\"A Very Easy Graph Problem\",427,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 6 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6798\":[\"Triangle Collision\",320,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+3\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 3 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6831\":[\"Fragrant numbers\",332,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+6\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 6 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6793\":[\"Tokitsukaze and Colorful Tree\",127,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+3\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University 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href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6848\":[\"Expectation\",63,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6847\":[\"Decision\",107,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6846\":[\"Counting\",16,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6845\":[\"Bitwise Xor\",53,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6844\":[\"Animism\",5,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6859\":[\"Easy NPC Problem\",5,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6858\":[\"Discovery of Cycles\",176,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training 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href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6850\":[\"Game\",374,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6856\":[\"Breaking Down News\",145,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6855\":[\"Auto-correction\",33,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6854\":[\"Kcats\",62,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6853\":[\"Jogging\",317,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+7\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 7 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6869\":[\"Slime and Stones\",227,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+9\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 9 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6868\":[\"Absolute Math\",97,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+9\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 9 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6863\":[\"Isomorphic Strings\",373,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6862\":[\"Hexagon\",295,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6861\":[\"Gaming of Co-prime Disallowance\",70,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6860\":[\"Fluctuation Limit\",345,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6867\":[\"Tree\",359,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+9\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 9 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6866\":[\"Linuber File System\",104,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6865\":[\"Kidnapper\\u0027s Matching Problem\",169,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6864\":[\"Jumping on a Cactus\",33,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+8\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 8 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6759\":[\"Leading Robots\",662,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+1\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 1 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6758\":[\"Integral Calculus\",25,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+1\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 1 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6879\":[\"Mine Sweeper\",282,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+10\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 10 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6753\":[\"Cookies\",60,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2020+Multi-University+Training+Contest+1\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2020 Multi-University Training Contest 1 \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-6874\":[\"Distance\",8,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca 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Multi-University Training Contest 3\u003c/summary\u003e\n [problem:HDU-6791]\n\t[problem:HDU-6792]\n\t[problem:HDU-6793]\n\t[problem:HDU-6794]\n\t[problem:HDU-6795]\n\t[problem:HDU-6796]\n\t[problem:HDU-6797]\n\t[problem:HDU-6798]\n\t[problem:HDU-6799]\n\t[problem:HDU-6800]\n\t[problem:HDU-6801]\n\u003c/details\u003e\n\n\u003cdetails\u003e\n \u003csummary\u003e2020 Multi-University Training Contest 4\u003c/summary\u003e\n [problem:HDU-6802]\n\t[problem:HDU-6803]\n\t[problem:HDU-6804]\n\t[problem:HDU-6805]\n\t[problem:HDU-6806]\n\t[problem:HDU-6807]\n\t[problem:HDU-6808]\n\t[problem:HDU-6809]\n\t[problem:HDU-6810]\n\t[problem:HDU-6811]\n\t[problem:HDU-6812]\n\t[problem:HDU-6813]\n\u003c/details\u003e\n\n\u003cdetails\u003e\n \u003csummary\u003e2020 Multi-University Training Contest 5\u003c/summary\u003e\n [problem:HDU-6814]\n\t[problem:HDU-6815]\n\t[problem:HDU-6816]\n\t[problem:HDU-6817]\n\t[problem:HDU-6818]\n\t[problem:HDU-6819]\n\t[problem:HDU-6820]\n\t[problem:HDU-6821]\n\t[problem:HDU-6822]\n\t[problem:HDU-6823]\n\t[problem:HDU-6824]\n\t[problem:HDU-6825]\n\t[problem:HDU-6826]\n\u003c/details\u003e\n\n\u003cdetails\u003e\n \u003csummary\u003e2020 Multi-University Training Contest 6\u003c/summary\u003e\n [problem:HDU-6827]\n\t[problem:HDU-6828]\n\t[problem:HDU-6829]\n\t[problem:HDU-6830]\n\t[problem:HDU-6831]\n\t[problem:HDU-6832]\n\t[problem:HDU-6833]\n\t[problem:HDU-6834]\n\t[problem:HDU-6835]\n\t[problem:HDU-6836]\n\t[problem:HDU-6837]\n\u003c/details\u003e\n\n\u003cdetails\u003e\n \u003csummary\u003e2020 Multi-University Training Contest 7\u003c/summary\u003e\n [problem:HDU-6844]\n\t[problem:HDU-6845]\n\t[problem:HDU-6846]\n\t[problem:HDU-6847]\n\t[problem:HDU-6848]\n\t[problem:HDU-6849]\n\t[problem:HDU-6850]\n\t[problem:HDU-6851]\n\t[problem:HDU-6852]\n\t[problem:HDU-6853]\n\t[problem:HDU-6854]\n\u003c/details\u003e\n\n\u003cdetails\u003e\n \u003csummary\u003e2020 Multi-University Training Contest 8\u003c/summary\u003e\n [problem:HDU-6855]\n\t[problem:HDU-6856]\n\t[problem:HDU-6857]\n\t[problem:HDU-6858]\n\t[problem:HDU-6859]\n\t[problem:HDU-6860]\n\t[problem:HDU-6861]\n\t[problem:HDU-6862]\n\t[problem:HDU-6863]\n\t[problem:HDU-6864]\n\t[problem:HDU-6865]\n\t[problem:HDU-6866]\n\u003c/details\u003e\n\n\u003cdetails\u003e\n \u003csummary\u003e2020 Multi-University Training Contest 9\u003c/summary\u003e\n [problem:HDU-6867]\n\t[problem:HDU-6868]\n\t[problem:HDU-6869]\n\t[problem:HDU-6870]\n\t[problem:HDU-6871]\n\t[problem:HDU-6872]\n\t[problem:HDU-6873]\n\t[problem:HDU-6874]\n\t[problem:HDU-6875]\n\t[problem:HDU-6876]\n\u003c/details\u003e\n\n\u003cdetails\u003e\n \u003csummary\u003e2020 Multi-University Training Contest 10\u003c/summary\u003e\n [problem:HDU-6877]\n\t[problem:HDU-6878]\n\t[problem:HDU-6879]\n\t[problem:HDU-6880]\n\t[problem:HDU-6881]\n\t[problem:HDU-6882]\n\t[problem:HDU-6883]\n\t[problem:HDU-6884]\n\t[problem:HDU-6885]\n\t[problem:HDU-6886]\n\t[problem:HDU-6887]\n\u003c/details\u003e\n","likeCnt":4,"createTime":1597819268000,"isWorkbook":true,"viewCnt":1395,"openness":2,"fav":false,"id":2447,"trustable":false}