#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(){
system("cls");
char chuoi1[50];
char chuoi2[50];
char chuoi3[50];
printf("Nhap ao chuoi1: ");
gets(chuoi1);
printf("Nhap ao chuoi2: ");
gets(chuoi2);
strcpy(chuoi3, chuoi1);
strcat(chuoi3, chuoi2);
printf("Ket qua sau khi noi chuoi la : %s", chuoi3);
return 0;
}
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