Submission #1275964

#	Time	Username	Problem	Language	Result	Execution time	Memory
1275964		SmuggingSpun	Rasvjeta (COCI17_rasvjeta)	C++20	50 / 50	1 ms	576 KiB

rasjveta

#include<bits/stdc++.h>
#define taskname "A"
using namespace std;
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	if(fopen(taskname".inp", "r")){
		freopen(taskname".inp", "r", stdin);
	}
	int n, m, k, ans = 0, pre = 1;
	cin >> n >> m >> k;
	for(int _ = 0; _ < m; _++){
		int x;
		cin >> x;
		if(x - k > pre){
			ans += (x - k - pre - 1) / (k << 1 | 1) + 1;
		}
		pre = x + k + 1;
	}
 	if(pre <= n){
		ans += (n - pre) / (k << 1 | 1) + 1;
	}
	cout << ans;
}

Compilation message (stderr)

rasjveta.cpp: In function 'int main()':
rasjveta.cpp:7:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |                 freopen(taskname".inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 50 / 50