#include <stdio.h>
int main() {
char vet1[20] = "Bom ";
char vet2[20] = "dia";
int i;
for (i = 0; vet1[i] != '\0'; i++);
for (int j = 0; vet2[j] != '\0'; j++) vet1[i++] = vet2[j];
}
//https://pt.stackoverflow.com/q/509832/101
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