Submission #3901872

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Source Code Expand

#include <cstdio>
#include <algorithm>
using namespace std;
typedef long long ll;

ll n, a;

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

    if (n == 1) {
        puts("1");
        return 0;
    }

    ll ans = n;
    for (int k = 0; k < 44; k++) {
        for (int s = 2; s <= 1000001; s++) {
            ll cki = 1, sec = 0;
            for (int i = 0; i < k && cki < n; i++) {
                cki *= s;
                sec += s+a;
            }
            while (cki < n && s != 2) {
                cki *= (s-1);
                sec += s-1+a;
            }
            if (cki >= n) {
                ans = min(ans, sec - a);
            }
        }
    }

    printf("%lld\n", ans);

    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld", &n, &a);
                               ^

Judge Result