15 lines
269 B
C
15 lines
269 B
C
#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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int main(int argc, const char* argv[]) {
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if (argc <= 1) {
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printf("Hello World!\n");
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}
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else {
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const char* echo_msg = argv[1];
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printf("%s\n", echo_msg);
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}
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return 0;
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}
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