제출 #501737

#제출 시각아이디문제언어결과실행 시간메모리
501737stefantagaPairs (IOI07_pairs)C++14
12 / 100
19 ms360 KiB
#include <bits/stdc++.h> using namespace std; int sum[7500005],v[7500005]; long long x,i,d,m,ceau,tip,n; int main() { #ifdef HOME ifstream cin("date.in"); ofstream cout("date.out"); #endif // HOME cin>>tip; if (tip==1) { cin>>n>>d>>m; for (i=1;i<=n;i++) { cin>>x; v[x]++; } for (i=1;i<=m;i++) { sum[i]=sum[i-1]+v[i]; ceau=ceau+1LL*(sum[i-1]-sum[i-d-1])*v[i]+(1LL*v[i]*(v[i]-1))/2; } cout<<ceau; } return 0; }
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