{"trustable":true,"prependHtml":"\u003cstyle type\u003d\"text/css\"\u003e\n section pre {\n display: block;\n padding: 9.5px;\n margin: 0 0 10px;\n font-size: 13px;\n line-height: 1.42857143;\n word-break: break-all;\n word-wrap: break-word;\n color: #333;\n background: rgba(255, 255, 255, 0.5);\n border: 1px solid #ccc;\n border-radius: 6px;\n }\n\u003c/style\u003e\n\u003cscript\u003e\n window.katexOptions \u003d {\n delimiters: [\n {left: \u0027\\\\(\u0027, right: \u0027\\\\)\u0027, display: false},\n {left: \u0027\\\\[\u0027, right: \u0027\\\\]\u0027, display: true}\n ]\n };\n\u003c/script\u003e\n","sections":[{"title":"Problem Statement","value":{"format":"HTML","content":"\r\n\u003csection\u003e\r\n\u003cp\u003eYou are going out for a walk, when you suddenly encounter a monster. Fortunately, you have \u003cvar\u003e\\(N\\)\u003c/var\u003e katana (swords), Katana \u003cvar\u003e\\(1\\)\u003c/var\u003e, Katana \u003cvar\u003e\\(2\\)\u003c/var\u003e, \u003cvar\u003e\\(…\\)\u003c/var\u003e, Katana \u003cvar\u003e\\(N\\)\u003c/var\u003e, and can perform the following two kinds of attacks in any order:\u003c/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eWield one of the katana you have. When you wield Katana \u003cvar\u003e\\(i\\)\u003c/var\u003e \u003cvar\u003e\\((1 ≤ i ≤ N)\\)\u003c/var\u003e, the monster receives \u003cvar\u003e\\(a_i\\)\u003c/var\u003e points of damage. The same katana can be wielded any number of times.\u003c/li\u003e\r\n\u003cli\u003eThrow one of the katana you have. When you throw Katana \u003cvar\u003e\\(i\\)\u003c/var\u003e \u003cvar\u003e\\((1 ≤ i ≤ N)\\)\u003c/var\u003e at the monster, it receives \u003cvar\u003e\\(b_i\\)\u003c/var\u003e points of damage, and you lose the katana. That is, you can no longer wield or throw that katana.\u003c/li\u003e\r\n\u003c/ul\u003e\r\n\u003cp\u003eThe monster will vanish when the total damage it has received is \u003cvar\u003e\\(H\\)\u003c/var\u003e points or more. At least how many attacks do you need in order to vanish it in total?\u003c/p\u003e\r\n\u003c/section\u003e\r\n"}},{"title":"Constraints","value":{"format":"HTML","content":"\r\n\u003csection\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cvar\u003e\\(1 ≤ N ≤ 10^5\\)\u003c/var\u003e\u003c/li\u003e\r\n\u003cli\u003e\u003cvar\u003e\\(1 ≤ H ≤ 10^9\\)\u003c/var\u003e\u003c/li\u003e\r\n\u003cli\u003e\u003cvar\u003e\\(1 ≤ a_i ≤ b_i ≤ 10^9\\)\u003c/var\u003e\u003c/li\u003e\r\n\u003cli\u003eAll input values are integers.\u003c/li\u003e\r\n\u003c/ul\u003e\r\n\u003c/section\u003e\r\n"}},{"title":"Input","value":{"format":"HTML","content":"\r\n\u003csection\u003e\r\n\u003cp\u003eInput is given from Standard Input in the following format:\u003c/p\u003e\r\n\u003cpre\u003e\u003cvar\u003e\\(N\\)\u003c/var\u003e \u003cvar\u003e\\(H\\)\u003c/var\u003e\r\n\u003cvar\u003e\\(a_1\\)\u003c/var\u003e \u003cvar\u003e\\(b_1\\)\u003c/var\u003e\r\n\u003cvar\u003e\\(:\\)\u003c/var\u003e\r\n\u003cvar\u003e\\(a_N\\)\u003c/var\u003e \u003cvar\u003e\\(b_N\\)\u003c/var\u003e\r\n\u003c/pre\u003e\r\n\r\n\u003c/section\u003e\r\n"}},{"title":"Output","value":{"format":"HTML","content":"\r\n\u003csection\u003e\r\n\u003cp\u003ePrint the minimum total number of attacks required to vanish the monster.\u003c/p\u003e\r\n\u003c/section\u003e\r\n"}},{"title":"Sample 1","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e1 10\r\n3 5\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e3\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n\r\n\u003csection\u003e\r\n\r\n\r\n\u003c/section\u003e\r\n\r\n\u003csection\u003e\r\n\r\n\r\n\u003cp\u003eYou have one katana. Wielding it deals \u003cvar\u003e\\(3\\)\u003c/var\u003e points of damage, and throwing it deals \u003cvar\u003e\\(5\\)\u003c/var\u003e points of damage. By wielding it twice and then throwing it, you will deal \u003cvar\u003e\\(3 + 3 + 5 \u003d 11\\)\u003c/var\u003e points of damage in a total of three attacks, vanishing the monster.\u003c/p\u003e\r\n\u003c/section\u003e\r\n"}},{"title":"Sample 2","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e2 10\r\n3 5\r\n2 6\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e2\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n\r\n\u003csection\u003e\r\n\r\n\r\n\u003c/section\u003e\r\n\r\n\u003csection\u003e\r\n\r\n\r\n\u003cp\u003eIn addition to the katana above, you also have another katana. Wielding it deals \u003cvar\u003e\\(2\\)\u003c/var\u003e points of damage, and throwing it deals \u003cvar\u003e\\(6\\)\u003c/var\u003e points of damage. By throwing both katana, you will deal \u003cvar\u003e\\(5 + 6 \u003d 11\\)\u003c/var\u003e points of damage in two attacks, vanishing the monster.\u003c/p\u003e\r\n\u003c/section\u003e\r\n"}},{"title":"Sample 3","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e4 1000000000\r\n1 1\r\n1 10000000\r\n1 30000000\r\n1 99999999\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e860000004\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n\r\n\u003csection\u003e\r\n\r\n\r\n\u003c/section\u003e\r\n\r\n\u003csection\u003e\r\n\r\n\r\n\u003c/section\u003e\r\n"}},{"title":"Sample 4","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e5 500\r\n35 44\r\n28 83\r\n46 62\r\n31 79\r\n40 43\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e9\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n\r\n\u003csection\u003e\r\n\r\n\r\n\u003c/section\u003e\r\n\r\n\u003csection\u003e\r\n\u003c/section\u003e\r\n"}}]}