35 lines
803 B
C++
35 lines
803 B
C++
#include <bits/stdc++.h>
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using namespace std;
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// 给出一个数字，比如(11)，将其转为2进制，计算出它的十进制是多少,答案应该是3
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//1234
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int convert(string s, int k) {
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int res = 0;
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for (int i = 0; i < s.size(); i++) {
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int x = s[i] - '0';
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if (x >= k) return -1;
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res += x * pow(k, s.size() - 1 - i); // 105
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}
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return res;
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}
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int main() {
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string a, b, c;
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cin >> a >> b >> c;
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bool flag = false;
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for (int k = 2; k <= 16; k++) {
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int x = convert(a, k);
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int y = convert(b, k);
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int z = convert(c, k);
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if (x * y == z) {
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cout << k << endl;
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flag = true;
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break;
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}
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}
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if (!flag) cout << 0 << endl;
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return 0;
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} |