{"trustable":false,"prependHtml":"\u003cstyle type\u003d\u0027text/css\u0027\u003e\n .input, .output {\n border: 1px solid #888888;\n }\n .output {\n margin-bottom: 1em;\n position: relative;\n top: -1px;\n }\n .output pre, .input pre {\n background-color: #EFEFEF;\n line-height: 1.25em;\n margin: 0;\n padding: 0.25em;\n }\n \u003c/style\u003e\n \u003clink rel\u003d\"stylesheet\" href\u003d\"//codeforces.org/s/96598/css/problem-statement.css\" type\u003d\"text/css\" /\u003e\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript type\u003d\"text/javascript\" async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS_HTML-full\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"MD","content":"某日晚上,WNJXYK 临时接到一篇长达 n 字的文案任务,此时他已经才思枯竭了,所以只能喝一杯奶茶憋一点文字。\n\n他喝下第一杯奶茶,写了 v 个字。接着,喝下第二杯奶茶,写了\u003cimg align\u003d\"middle\" class\u003d\"tex-formula\" SRC\u003d\"CDN_BASE_URL/ddc187e3f86a910469e91dcfcfd43c63?v\u003d1542932147\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e 个字。紧接着,喝下第三杯奶茶,写了 \u003cimg align\u003d\"middle\" class\u003d\"tex-formula\" SRC\u003d\"CDN_BASE_URL/074e82df120cfbcadbbc893323a7df2f?v\u003d1542932147\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e 个字。如果他继续边喝奶茶边写文案,接下来每次将会写 \u003cimg align\u003d\"middle\" class\u003d\"tex-formula\" SRC\u003d\"CDN_BASE_URL/f0c8aa3eec6e478bdbe81d64989e4dc8?v\u003d1542932147\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e, \u003cimg align\u003d\"middle\" class\u003d\"tex-formula\" SRC\u003d\"CDN_BASE_URL/fe3affcdc5686ffef2803422daab8568?v\u003d1542932147\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e, \u003cimg align\u003d\"middle\" class\u003d\"tex-formula\" SRC\u003d\"CDN_BASE_URL/af80e4281cffab1e2d76e2fc39d1fe93?v\u003d1542932147\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e, ... 个字。\n\n其中,\u003cimg align\u003d\"middle\" class\u003d\"tex-formula\" SRC\u003d\"CDN_BASE_URL/31dbe8b814fbddf4f1e04f20290e2203?v\u003d1542932147\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e 表示的是\u003cspan class\u003d\"tex-span\"\u003e \u003ci\u003ea\u003c/i\u003e\u003c/span\u003e/\u003cspan class\u003d\"tex-span\"\u003e\u003ci\u003eb\u003c/i\u003e \u003c/span\u003e的整数部分(向下取整)。\n\n如果 \u003cimg align\u003d\"middle\" class\u003d\"tex-formula\" SRC\u003d\"CDN_BASE_URL/3878065a548292b39dc1dd3fae09dd03?v\u003d1542932147\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e 的值等于0,那么 WNJXYK 就再也憋不出来任何文字了,只能灰溜溜地睡觉了。\n\nWNJXYK 想知道 v 的最小值,使他在写不出来任何文字去睡觉之前,写出文案的总字数不小于 n。"}},{"title":"Input","value":{"format":"MD","content":"\u003cp\u003e输入两个整数 \u003cspan class\u003d\"tex-span\"\u003e\u003ci\u003en\u003c/i\u003e\u003c/span\u003e 和 \u003cspan class\u003d\"tex-span\"\u003e\u003ci\u003ek\u003c/i\u003e\u003c/span\u003e,\u003cspan class\u003d\"tex-span\"\u003e1 ≤ \u003ci\u003en\u003c/i\u003e ≤ 10\u003csup class\u003d\"upper-index\"\u003e9\u003c/sup\u003e\u003c/span\u003e,\u003cspan class\u003d\"tex-span\"\u003e2 ≤ \u003ci\u003ek\u003c/i\u003e ≤ 10\u003c/span\u003e。\u003c/p\u003e"}},{"title":"Output","value":{"format":"MD","content":"\u003cp\u003e输出整数 v 的最小值,使 WNJXYK 写出的总字数之和不小于 n。\u003c/p\u003e"}},{"title":"Examples","value":{"format":"MD","content":"\u003cdiv class\u003d\"sample-test\"\u003e\n \u003cdiv class\u003d\"input\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e\n \u003cpre\u003e7 2\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"output\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e\n \u003cpre\u003e4\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"input\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e\n \u003cpre\u003e59 9\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"output\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e\n \u003cpre\u003e54\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n\u003c/div\u003e"}},{"title":"Note","value":{"format":"MD","content":"\u003cp\u003e第一个样例的答案是 \u003cspan class\u003d\"tex-span\"\u003e\u003ci\u003ev\u003c/i\u003e \u003d 4\u003c/span\u003e, 4 + 2 + 1 \u003d 7。\u003c/p\u003e\n\u003cp\u003e第二个样例的答案是 \u003cspan class\u003d\"tex-span\"\u003e\u003ci\u003ev\u003c/i\u003e \u003d 54\u003c/span\u003e, 54 + 6 \u003d 60。\u003c/p\u003e"}}]}