Submission #1478465

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Source Code Expand

#include<bits/stdc++.h>
#define range(i,a,b) for(int i = (a); i < (b); i++)
#define rep(i,b) for(int i = 0; i < (b); i++)
#define all(a) (a).begin(), (a).end()
#define show(x)  cerr << #x << " = " << (x) << endl;
using namespace std;

int main(){
    int n, c, k;
    cin >> n >> c >> k;

    list<int> v;
    rep(i,n){
        int x;
        cin >> x;
        v.emplace_back(x);
    }
    v.sort();

    int sum = 0;
    while(not v.empty()){
        int first = v.front() + k;
        v.pop_front();
        rep(i,c - 1){
            if(v.empty()) break;
            if(v.front() <= first) v.pop_front();
        }
        sum++;
    }
    cout << sum << endl;
}

Submission Info

Judge Result