30 lines
463 B
C++
30 lines
463 B
C++
#include <iostream>
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#include <cmath>
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using namespace std;
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int translate(char c) {
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if (48 <= c && c <= 57) {
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return c - 48;
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} else {
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return c - 55;
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}
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}
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int calculate(string s, int n) {
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int l = s.length();
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int r = 0;
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for (int i = 0; i < l; i++) {
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r += translate(s[i]) * pow(n, l - i - 1);
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}
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return r;
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}
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int main() {
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string s;
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int n;
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cin >> s >> n;
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cout << calculate(s, n);
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return 0;
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} |