Submission #614336

#	Time	Username	Problem	Language	Result	Execution time	Memory
614336		Plurm	Boarding Passes (BOI22_passes)	C++11	0 / 100	0 ms	212 KiB

passes

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

char s[100005];
double solve(int n) {
  double ans = ((n / 4) * (n + 1) + (n % 2 == 1 ? 1 : 0)) / 2.0;
  return max(ans, 0.0);
}
int main() {
  scanf("%s", s);
  int n = strlen(s);
  printf("%.6f\n", solve(n));
}

Compilation message (stderr)

passes.cpp: In function 'int main()':
passes.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   scanf("%s", s);
      |   ~~~~~^~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 25
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40