結果
問題 | No.500 階乗電卓 |
ユーザー | Kmcode1 |
提出日時 | 2017-04-07 23:08:49 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 2,696 bytes |
コンパイル時間 | 1,456 ms |
コンパイル使用メモリ | 164,972 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-25 02:53:08 |
合計ジャッジ時間 | 2,243 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 1 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 1 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:135:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 135 | scanf("%lld", &n); | ~~~~~^~~~~~~~~~~~
ソースコード
#include<bits/stdc++.h> #include<unordered_set> #include<unordered_map> using namespace std; long long int n; string cur; void MOD(){ reverse(cur.begin(), cur.end()); while (cur.size() > 12){ cur.pop_back(); } reverse(cur.begin(), cur.end()); } bool check(){ for (int i = 0; i < cur.size(); i++){ if (cur[i] == '0'){ } else{ return false; } } return true; } string pluss(string a, string b, bool flag = false){ if (!flag){ reverse(a.begin(), a.end()); reverse(b.begin(), b.end()); } if (a.size() > b.size()){ swap(a, b); } string ans; ans.clear(); long long int want = 0; for (int i = 0; i < a.size(); i++){ long long int val = a[i] - '0'; val += b[i] - '0'; val += want; want = val / 10LL; val %= 10LL; ans.push_back(val + '0'); } for (int j = a.size(); j < b.size(); j++){ long long int val = 0; val += b[j] - '0'; val += want; want = val / 10LL; val %= 10LL; ans.push_back(val + '0'); } while (want){ ans.push_back(want % 10 + '0'); want /= 10; } if (!flag){ reverse(ans.begin(), ans.end()); } if (ans.size() == 0)ans = "0"; return ans; } string mult(string a, string b, bool flag = false){ if (!flag){ reverse(a.begin(), a.end()); reverse(b.begin(), b.end()); } string ans = "0"; string pas; string kari; pas.clear(); for (int i = 0; i < b.size(); i++){ long long int bb = b[i] - '0'; long long int tmp = 0; kari = pas; for (int j = 0; j < a.size(); j++){ long long int val = (long long int)(a[j] - '0')*bb; val += tmp; tmp = val / 10LL; val %= 10LL; kari.push_back(val + '0'); } while (tmp){ kari.push_back((tmp % 10LL) + '0'); tmp /= 10LL; } ans = pluss(ans, kari, true); //end pas.push_back('0'); } if (!flag){ reverse(ans.begin(), ans.end()); } if (ans.size() == 0)ans = "0"; return ans; } string minuss(string a, string b){ reverse(b.begin(), b.end()); reverse(a.begin(), a.end()); while (a.size()>b.size()){ b.push_back('0'); } while (a.size()<b.size()){ a.push_back('0'); } bool carry = false; for (int i = 0; i<a.size(); i++){ if (a[i] != '0'&&carry){ a[i]--; carry = false; } if (a[i] == '0'&&carry){ a[i] = '9'; } if (a[i] >= b[i]){ a[i] = (a[i] - '0') - (b[i] - '0') + '0'; } else{ a[i] = (10 + (a[i] - '0') - (b[i] - '0')) + '0'; carry = true; } } while (a.size()>1 && a.back() == '0'){ a.pop_back(); } reverse(a.begin(), a.end()); return a; } int main(){ scanf("%lld", &n); cur = "1"; for (long long int i = 2; i <= n; i++){ stringstream ss; ss << i; string k; ss >> k; cur = mult(cur, k); MOD(); if (check()){ break; } } MOD(); cout << cur << endl; return 0; }