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20 lines
363 B
C++
20 lines
363 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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string k, c;
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int t = 0;
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cin >> k >> c;
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for (int i = 0; i < c.size(); i++) {
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t = (k[i % k.size()] & 31) - 1;
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if ((c[i] & 31) - t > 0) {
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c[i] = c[i] - t;
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} else {
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c[i] = c[i] - t + 26;
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}
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}
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cout << c << endl;
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return 0;
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}
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