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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #432849 | #6712. Sum of Factorials | surenjamts# | TL | 7ms | 3632kb | C++14 | 618b | 2024-06-07 18:55:57 | 2024-06-07 18:55:57 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N = 1e6 + 5;
bool ans[N+5];
int main(){
int fact[20];
fact[0] = 1;
for (int i = 1; i<=11; i++){
fact[i] = fact[i-1] * i;
}
ans[0] = true;
ans[1] = true;
for(int k = 1; k<=11; k++){
for(int i = N; i>=0; i--){
if(ans[i]) {
if(i + fact[k] > N) continue;
ans[i + fact[k]] = true;
}
}
}
int A = 0;
while(true) {
cin >> A;
if( A == -1) break;
if(ans[A]) cout << "YES\n";
else cout << "NO\n";
}
}
详细
Test #1:
score: 100
Accepted
time: 7ms
memory: 3632kb
input:
9 -1
output:
YES
result:
ok single line: 'YES'
Test #2:
score: -100
Time Limit Exceeded
input:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 715 716 717 718 719 720 721 722...
output:
YES YES YES YES YES NO YES YES YES YES YES NO NO NO NO NO NO NO NO NO NO YES YES YES YES YES NO YES YES YES YES YES NO NO NO NO NO NO NO NO NO NO YES YES YES YES YES NO YES YES YES YES YES NO NO NO NO NO NO NO NO NO NO YES YES YES YES YES NO YES YES YES YES YES NO NO NO NO NO NO NO NO NO NO YES YES ...