32 lines
517 B
C++
32 lines
517 B
C++
#include <iostream>
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int keyvalue(char c)
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{
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return std::tolower(c) - 'a';
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}
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int main(int argc, char** argv)
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{
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char* text;
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char* key;
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if(argc < 3)
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{
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std::cout << "Usage: " << argv[0] << " <plain text> <key>" << std::endl;
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return 0;
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}
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text = argv[1];
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key = argv[2];
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int ki = 0;
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for(int pi = 0; text[pi] != 0; ++pi)
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{
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char c = std::tolower(text[pi]) + keyvalue(key[ki]);
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if(c < 'a') c+=26;
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if(c > 'z') c-=26;
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std::cout << c;
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if(key[++ki] == 0) ki = 0;
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}
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std::cout << std::endl;
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return 0;
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}
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