Submission #1007944

#	Time	Username	Problem	Language	Result	Execution time	Memory
1007944		kebine	Lasers (NOI19_lasers)	C++17	10 / 100	1 ms	600 KiB

lasers

#include<bits/stdc++.h>
#define int long long
using namespace std;

signed main()
{
  int n, q, k, p;
  scanf("%lld %lld", &n, &q);
  scanf("%lld %lld", &k, &p);
  printf("%lld\n", max(0ll, 2*p-n));
}

Compilation message (stderr)

lasers.cpp: In function 'int main()':
lasers.cpp:8:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |   scanf("%lld %lld", &n, &q);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~
lasers.cpp:9:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |   scanf("%lld %lld", &k, &p);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 22
• Subtask 6: 0 / 13