Cod sursa(job #2548720)
| Utilizator |  Iceman bem.andrei |
Data | 16 februarie 2020 22:23:46 |
|---|---|---|---|
| Problema | Divk | Scor | 100 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva de probleme | Marime | 0.33 kb |
#include <iostream>
#include <fstream>
using namespace std;ifstream r("divk.in");ofstream w("divk.out");int v[500001], freq[500001];int main(){int n, a, b, k;long long cnt=0;r>>n>>k>>a>>b;for(int i=1;i<=n;i++){int x;r>>x;v[i]=(v[i-1]+x)%k;if (i >= a)freq[v[i - a]]++;if (i > b)freq[v[i - b - 1]]--;cnt+=freq[v[i]];}w<<cnt;return 0;}
