Submission #1115932

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void) {
    long long N, M, c;
    scanf("%lld%lld", &N, &M);
    if (M >= N*2LL) {
        c = (M-N*2LL)/4LL;
        if (N+c <= (M-c*2LL)/2) printf("%lld\n", N+c);
        else printf("%lld\n", (M-c*2LL)/2LL);
    } else {
        printf("%lld\n", M/2LL);
    }
    return 0;
}

Submission Info

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