Submission #1077615

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1077615	2024-08-27 08:22:47	Arturgo	COVID tests (CEOI24_covid)	C++14	100 / 100	3409 ms	8500 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
bool test_students(vector<bool> mask);
double esp(int prefix, int total);
int N;
double P;
bool estPasse[1001][1001];
double dp[1001][1001];
double powers[1001];
pair<double, int> opt_no_prefix(int total) {
    double min_esp = INFINITY;
    int opt_sz = -1;
    for(int sz = 1;sz <= total;sz++) {
        double P_vide = powers[sz];
        double E = 1 + esp(0, total - sz) * P_vide + esp(sz, total) * (1 - P_vide);
        
        if(E < min_esp) {
            min_esp = E;
            opt_sz = sz;
        }
    }
    return {min_esp, opt_sz};
}
pair<double, int> opt_prefix(int prefix, int total) {
 
 
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:102:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  102 |     scanf("%d %lf %d", &N, &P, &T);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:118:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  118 |         scanf(" %c", &verdict);
      |         ~~~~~^~~~~~~~~~~~~~~~~
Main.cpp: In function 'bool test_students(std::vector<bool>)':
Main.cpp:137:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  137 |     scanf(" %c", &answer);
      |     ~~~~~^~~~~~~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 10 / 10
• Subtask 2: 90 / 90