이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
using namespace std;
const int N=1e6+1;
int n,q;
int arr[N];
pii qst[N];
int main(){
ios_base::sync_with_stdio(0),cin.tie(0);
cin >> n >> q;
for(int i=1; i<=n; i++){
cin >> arr[i];
}
while(q--){
int h;
cin >> h;
int idx=upper_bound(arr+1,arr+n+1,h)-arr-1;
cout << ((ll)arr[idx]*(arr[idx]+1))/2 << '\n';
}
return 0;
}
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