View Code of Problem 6

#include <iostream>
#include <cstdio>
using namespace std;
int main(){
    int t;
    cin>>t;
    while(t--){
        int n,a[999],b[999],max=0,flag=1;
        cin>>n;
        for(int i=0;i<n;i++){
            cin>>a[i]>>b[i];
            if(b[i]-a[i]>max){
                max=b[i]-a[i];
            }
        }
        for(int i=0;i<n-1;i++){
            if(a[i+1]-a[i]<max){
                flag = 0;
                break;
            }
        }
        if(flag==1)
            cout<<"YES"<<endl;
        else
            cout<<"NO"<<endl;
    }
    return 0;
}




Double click to view unformatted code.


Back to problem 6