Untitled
unknown
c_cpp
a year ago
505 B
4
Indexable
Never
#include <iostream> #include <vector> #include <cmath> using namespace std; int main() { int N, K; cin >> N; vector<int> prices(N); for(int i = 0; i < N; i++) { cin >> prices[i]; } cin >> K; int count = 0; for(int i = 0; i < N - 1; i++) { for(int j = i + 1; j < N; j++) { if(abs(prices[i] - prices[j]) == K) { count++; } } } cout << count << endl; return 0; }