結果
問題 | No.604 誕生日のお小遣い |
ユーザー |
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提出日時 | 2017-12-04 00:13:21 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 6 ms / 1,000 ms |
コード長 | 3,618 bytes |
コンパイル時間 | 1,678 ms |
コンパイル使用メモリ | 173,440 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-21 19:14:04 |
合計ジャッジ時間 | 2,498 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 21 |
コンパイルメッセージ
main.cpp: In member function 'bool StrInt::operator<(const StrInt&) const': main.cpp:120:9: warning: control reaches end of non-void function [-Wreturn-type] 120 | } | ^
ソースコード
#include <bits/stdc++.h>using namespace std;typedef long long signed int LL;typedef long long unsigned int LU;#define incID(i, l, r) for(int i = (l) ; i < (r); i++)#define incII(i, l, r) for(int i = (l) ; i <= (r); i++)#define decID(i, l, r) for(int i = (r) - 1; i >= (l); i--)#define decII(i, l, r) for(int i = (r) ; i >= (l); i--)#define inc(i, n) incID(i, 0, n)#define inc1(i, n) incII(i, 1, n)#define dec(i, n) decID(i, 0, n)#define dec1(i, n) decII(i, 1, n)#define inII(v, l, r) ((l) <= (v) && (v) <= (r))#define inID(v, l, r) ((l) <= (v) && (v) < (r))#define PB push_back#define EB emplace_back#define MP make_pair#define FI first#define SE second#define PQ priority_queue#define ALL(v) v.begin(), v.end()#define RALL(v) v.rbegin(), v.rend()#define FOR(it, v) for(auto it = v.begin(); it != v.end(); ++it)#define RFOR(it, v) for(auto it = v.rbegin(); it != v.rend(); ++it)template<typename T> bool setmin(T & a, T b) { if(b < a) { a = b; return true; } else { return false; } }template<typename T> bool setmax(T & a, T b) { if(b > a) { a = b; return true; } else { return false; } }template<typename T> bool setmineq(T & a, T b) { if(b <= a) { a = b; return true; } else { return false; } }template<typename T> bool setmaxeq(T & a, T b) { if(b >= a) { a = b; return true; } else { return false; } }template<typename T> T gcd(T a, T b) { return (b == 0 ? a : gcd(b, a % b)); }template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }// ---- ----const int D = 40;struct StrInt {string s;void init(string t) {bool flag = (t[0] == '-');if(flag) { t = t.substr(1); }string u(D - t.size(), '0');s = u + t;if(flag) { (*this) = -(*this); }}void init(LL v) {init(tostr(v));}string tostr(LL x) {string s;bool f = (x < 0);if(f) { x *= -1; }while(x) {s.PB('0' + x % 10);x /= 10;}if(f) { s.PB('-'); }reverse(ALL(s));return s;}StrInt & operator++() {dec(i, D) {s[i]++;if(s[i] > '9') { s[i] = '0'; } else { break; }}return (*this);}StrInt & operator--() {dec(i, D) {s[i]--;if(s[i] < '0') { s[i] = '9'; } else { break; }}return (*this);}StrInt operator+() const {return (*this);}StrInt operator-() const {StrInt y;y.init(s);--y;inc(i, D) { y.s[i] = '0' + ('9' - y.s[i]); }return y;}StrInt operator+(const StrInt & x) {StrInt y = x;dec(i, D) {y.s[i] += (s[i] - '0');if(y.s[i] > '9') {y.s[i] -= 10;if(i != 0) { y.s[i - 1]++; }}}return y;}StrInt operator-(const StrInt & x) {return (*this) + (-x);}StrInt operator*(const StrInt & x) {StrInt y, z = x;y.init("0");dec(i, D) {inc(j, s[i] - '0') { y = y + z; }StrInt v = z;inc(j, 9) { z = z + v; }}return y;}bool operator<(const StrInt & x) const {bool f1 = ( s[0] < '5');bool f2 = (x.s[0] < '5');if(f1 == f2) { return (s < x.s); }if(! f1 && f2) { return true; }if( f1 && ! f2) { return false; }}bool operator==(const StrInt & x) const {return s == x.s;}};ostream & operator<<(ostream & os, const StrInt & x) {StrInt s = x;if(s.s[0] >= '5') { s = -s; cout << "-"; }int p = D - 1;inc(i, D) {if(s.s[i] != '0') { p = i; break; }}os << s.s.substr(p);return os;}// ----LL a, b, c;bool f(LL x) {StrInt s, t, u;s.init(c - x - 1);t.init(x / a);u.init(b - 1);return (s < t * u);}int main() {cin >> a >> b >> c;LL l = 0, h = 1e18;while(h - l > 1) {LL m = (l + h) / 2;(f(m) ? h : l) = m;}cout << h << endl;return 0;}