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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#155550 | #5503. Euclidean Algorithm | 275307894a | TL | 0ms | 4020kb | C++14 | 918b | 2023-09-01 19:47:45 | 2023-09-01 19:47:46 |
Judging History
answer
#include<bits/stdc++.h>
#define Gc() getchar()
#define Me(x,y) memset(x,y,sizeof(x))
#define Mc(x,y) memcpy(x,y,sizeof(x))
#define d(x,y) ((m)*(x-1)+(y))
#define R(n) (rnd()%(n)+1)
#define Pc(x) putchar(x)
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second
using namespace std;using ll=long long;using db=double;using lb=long db;using ui=unsigned;using ull=unsigned long long;using pii=pair<int,int>;using LL=__int128;
const int N=2e6+5,M=N*4+5,K=600+5,mod=998244353,Mod=mod-1;const db eps=1e-9;const ll INF=1e18+7;mt19937 rnd(time(0));
int n;
void Solve(){
int i,j;scanf("%d",&n);
int ans=0;for(i=1;i<=n;i++){
for(j=i+1;j<=n;j++){
ans+=((j-__gcd(i,j))%i==0);
// if((j-gcd(i,j))%i) cerr<<i<<' '<<j<<'\n';
}
}
printf("%d\n",ans);
}
int main(){
int t;
scanf("%d",&t);
// t=1;
while(t--) Solve();
cerr<<clock()*1.0/CLOCKS_PER_SEC<<'\n';
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 4020kb
input:
3 2 5 14
output:
1 9 62
result:
ok 3 lines
Test #2:
score: -100
Time Limit Exceeded
input:
3 29107867360 65171672278 41641960535