Submission #1121512

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121512		vjudge1	Boarding Passes (BOI22_passes)	C++17	5 / 100	4 ms	596 KiB

passes

#include <bits/stdc++.h>
using namespace std;
int n, g;
string s;
long double get(long double x) {
    return x * (x-1)/4;
}
int main() {
    cin >> s;
    for(int i = 0; i < s.size(); i++) {
        g = max(s[i] - 'A', g);
    }

    long long n = s.size();
    if(g == 0) {
        long double ans = 1e18;
        for(long long i = 0; i <= n; i++) {
            ans = min(ans, get(i) + get(n-i));
        }
        cout << fixed << setprecision(12) << ans << "\n";
        return 0;
    }
    cout << 1 << "\n";
}

Compilation message (stderr)

passes.cpp: In function 'int main()':
passes.cpp:10:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for(int i = 0; i < s.size(); i++) {
      |                    ~~^~~~~~~~~~

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