Submission #74266396

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;

#define int long long 

const int N=100+5;

bool st;
int n,a[N][N];
bool ed;

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0),cout.tie(0);
	cerr<<(double)(&st-&ed)/1024/1024<<'\n';
	cin>>n;
	for(int i=1;i<=n;i++) {
		for(int j=i+1;j<=n;j++) cin>>a[i][j];
	}
	for(int i=1;i<=n;i++) {
		for(int j=i+1;j<=n;j++) {
			for(int k=j+1;k<=n;k++) {
				if(a[i][j]+a[j][k]<a[i][k]) {
					cout<<"Yes\n";
					return 0;
				}
			}
		}
	}cout<<"No\n";
	return 0;
}

Submission Info

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