QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #510263 | #9158. 分数 | hypeskynick# | 0 | 0ms | 0kb | C++14 | 634b | 2024-08-09 00:58:32 | 2024-08-09 00:58:32 |
answer
// Source: https://usaco.guide/general/io
#include <bits/stdc++.h>
using namespace std;
bool valid(int x, int y){
if(x==2)return true;
if(x/y>2)return valid(x-2*y,y);
if(2*x/y<=1)return valid(y,x);
return false;
}
int main() {
//find all perfect fractions less than 1/2 and place them into
// an array then propogate numerator and denominator to their limits
freopen("fraction.in", "r", stdin);
freopen("fraction.out", "w", stdout);
int n,m,ans=0;
cin >> n >> m;
vector<pair<int,int>> perf;
for (int i =1;i<=n;i++){
for(int j=2;j<=m;j++){
if(valid(i,j))ans++;
}
}
cout << ans << "\n";
}
Details
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Pretests
Pretest #1:
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Final Tests
Test #1:
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Dangerous Syscalls
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96 98
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Test #2:
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Dangerous Syscalls
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100 99
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99 99
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Dangerous Syscalls
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Dangerous Syscalls
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Dangerous Syscalls
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Dangerous Syscalls
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Test #18:
score: 0
Dangerous Syscalls
input:
7855098 7962479
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Test #19:
score: 0
Dangerous Syscalls
input:
7841076 29648718
output:
result:
Test #20:
score: 0
Dangerous Syscalls
input:
29365129 29012208