Bài tập ôn tập String - Lập trình C

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#include <stdio.h>
#include <string.h>

int main()
{
    //Bai 1:
    /**char s1[50];
    
    printf("\nNhap s1 = ");
    fflush(stdin);fflush(stdout);
    gets(s1);
    
    int length1 = strlen(s1);
    printf("\nLength: %d", length1);*/
    
    //Bai 2
    /**
    char s1[50], s2[50];
    
    printf("\nNhap s1 = ");
    fflush(stdin);fflush(stdout);
    gets(s1);
    
    printf("\nNhap s2 = ");
    fflush(stdin);fflush(stdout);
    gets(s2);
    
    strcat(s1, s2);
    int length = strlen(s1);
    printf("\nLength: %d", length);
    */
    
    //Bai 3
    char s[50];
    
    printf("\nNhap s = ");
    fflush(stdin);fflush(stdout);
    gets(s);
    
    int length = strlen(s);
    int i;
    
    for(i=0;i<length;i++) {
        printf("\n%c", s[i]);
    }

    return 0;
}