baoshuo/OI-codes
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T203846 [$€₱2021 普及组] €€£ NB

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R61423526
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Baoshuo Ren 2021-10-31 16:14:35 +08:00 committed by Baoshuo Ren
parent 742bf5a6c8
commit f990dedacb
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 19 additions and 0 deletions
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Luogu/T203846/T203846.cpp Normal file
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#include <bits/stdc++.h>
using namespace std;
long long a, b, c, ans;
int main() {
cin >> a >> b >> c;
if (a == 1 || b == 1) {
cout << -1 << endl;
exit(0);
}
while (a <= c) {
a *= b;
ans++;
}
cout << ans << endl;
return 0;
}