oj.uz

Submission #632213

# Submission time Handle Problem Language Result Execution time Memory
632213 2022-08-19T16:21:40 Z Jovan26 Fountain (eJOI20_fountain) C++14
0 / 100
 287 ms 2120 KB 
#include<iostream>
using namespace std;
int d[100005];
int c[100005];
int ci[100005];
bool check(int r,int v,int x){
	if(ci[x]-ci[r]<v) return true;
	return false;
}
int main(){
	int n,q;
	cin>>n>>q;
	for(int i=1;i<n+1;i++) cin>>d[i]>>c[i];
	ci[1] = 0;
	for(int i=2;i<=n;i++){
		ci[i] = c[i-1]+ci[i-1];
	}
	ci[0] = ci[n-1]+c[n];
	for(int e = 0;e<q;e++){
		int r,v;
		cin>>r>>v;
		if(ci[0]-ci[r]<v) cout<<0<<endl;
		else{
			int l = r;
			int r1 = n;
			int cr = 0 ;
			while(r1>=l){
				int mid = (r1+l)/2;
				if((r1+l)%2==1) mid++;	
				if(check(r,v,mid)){
					l = mid+1;
					cr = mid;
				}
				else{
					r1 = mid-1;
				}
			}
		cout<<cr<<endl;	
		}
}
}

Subtask #1
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 287 ms 2120 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -