oj.uz

답안 #968072

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
968072 2024-04-23T07:32:19 Z vjudge1 Vudu (COCI15_vudu) C++17
0 / 140
 255 ms 39092 KB 
#include<bits/stdc++.h>
 
using namespace std;
 
int n, fw[1000001];
    long long qs[1000001], k;
long long ans;
 
void update(int idx, int val){
    for(; idx <= n; idx+=(idx&-idx)) fw[idx]+=val;
}
 
long long query(int idx){
    long long sum = 0;
    for(; idx; idx-=(idx&-idx)) sum+=fw[idx];
    return sum;
}
 
signed main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n;
    vector<long long> v;
    memset(qs, 0, sizeof(qs));
    for(int i = 1; i<=n; ++i) cin >> qs[i];
    cin >> k;
    for(int i = 1; i<=n; ++i) qs[i]+=qs[i - 1];
    for(int i = 1; i<=n; ++i) v.push_back(qs[i] - i*k);
    sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()));
    for(int i = 1; i<=n; ++i){
        int id = lower_bound(v.begin(), v.end(), qs[i] - i*k) - v.begin();
        ans+=query(id+1);
        update(id+1, 1);
    }
    cout << ans;
}

Subtask #1
0 / 140.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4 ms 8916 KB Output isn't correct
2 Incorrect 3 ms 8792 KB Output isn't correct
3 Incorrect 3 ms 8796 KB Output isn't correct
4 Incorrect 255 ms 25012 KB Output isn't correct
5 Incorrect 139 ms 21444 KB Output isn't correct
6 Runtime error 134 ms 39092 KB Execution killed with signal 11
7 Incorrect 217 ms 23472 KB Output isn't correct
8 Incorrect 192 ms 23348 KB Output isn't correct
9 Incorrect 250 ms 25932 KB Output isn't correct
10 Incorrect 224 ms 23988 KB Output isn't correct