Submission #576400

#	Time	Username	Problem	Language	Result	Execution time	Memory
576400		MrM7md	Fountain (eJOI20_fountain)	C++17	30 / 100	74 ms	4924 KiB

fountain

#include <bits/stdc++.h>

using namespace std;
#define int long long
#define endl "\n"

const int MOD = 1e9 + 7;

signed main(){
   ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
   int n,q;
   cin >> n>>q;
   int a[n+1]={0};
   for(int i=1;i<=n;i++){
      int x;cin >> x;
      cin >> a[i];
      a[i]+=a[i-1];
   }
   while(q--){
      int r,v;
      cin >>r >> v;
      v+=a[r-1];
      int ans=lower_bound(a,a+n,v)-a;
      if(v>a[ans+1])ans++;
      if(ans==n)ans=0;
      cout<<ans<<endl;
   }

}

• Subtask 1: 0 / 30
• Subtask 2: 30 / 30
• Subtask 3: 0 / 40