KWJn9m - Online C++ Compiler & Debugging Tool

#include <bits/stdc++.h>
using namespace std;
int main(){
    int N, M, K, A[100001];
    cin >> N >> M >> K;

    for ( int i = 0 ; i < N ; i++ ){
        cin >> A[i];
    }

    sort ( A , A + N );
    int t = M + K;
    int Jwb = 0;

    for ( int i = 0 ; i < N ; i++ ){
        if ( A[i] > t ){
            t = A[i] + K;
            Jwb++;
        }
    }
    cout << Jwb << endl;
    return 0;
}