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Submission #56080

# Submission time Handle Problem Language Result Execution time Memory
56080 2018-07-09T21:31:14 Z gabrielsimoes Sure Bet (CEOI17_sure) C++17
0 / 100
 2 ms 356 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

const int MAXN = 1e5+10;

int n;
double pa[MAXN], pb[MAXN];

double ans = 0;
void dfs(int i, double a, double b) {
    if (i == n) {
        ans = max(ans, min(a, b));
    } else {
        dfs(i+1, a, b);
        dfs(i+1, a-1.0, b+pb[i]-1.0);
        dfs(i+1, a+pa[i]-1.0, b-1.0);
    }
}

int main() {
    scanf("%d", &n);

    for (int i = 0; i < n; i++) {
        double a, b;
        scanf("%lf %lf", &a, &b);
        // pa[i] = 1e4 * a;
        // pb[i] = 1e4 * b;
        pa[i] = a;
        pb[i] = b;
    }

    dfs(0, 0, 0);
    printf("%.4lf\n", ans);
}

Compilation message

sure.cpp: In function 'int main()':
sure.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
sure.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lf %lf", &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Incorrect 2 ms 356 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Incorrect 2 ms 356 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Incorrect 2 ms 356 KB Output isn't correct
3 Halted 0 ms 0 KB -