What will be the output of the program?

#include<stdio.h>

int main()
{
    char str[7] = "CuriousTab";
    printf("%s\n", str);
    return 0;
}

#include<stdio.h>

int main()
{
    char a[] = "Visual C++";
    char *b = "Visual C++";
    printf("%d, %d\n", sizeof(a), sizeof(b));
    printf("%d, %d", sizeof(*a), sizeof(*b));
    return 0;
}

#include<stdio.h>

int main()
{
    printf("%d, %d, %d", sizeof(3.0f), sizeof('3'), sizeof(3.0));
    return 0;
}

#include<stdio.h>

int main()
{
    static char mess[6][30] = {"Don't walk in front of me...", 
                               "I may not follow;", 
                               "Don't walk behind me...", 
                               "Just walk beside me...", 
                               "And be my friend." };

    printf("%c, %c\n", *(mess[2]+9), *(*(mess+2)+9));
    return 0;
}

#include<stdio.h>
void swap(char *, char *);

int main()
{
    char *pstr[2] = {"Hello", "CuriousTab"};
    swap(pstr[0], pstr[1]);
    printf("%s\n%s", pstr[0], pstr[1]);
    return 0;
}
void swap(char *t1, char *t2)
{
    char *t;
    t=t1;
    t1=t2;
    t2=t;
}

#include<stdio.h>

int main()
{
    char str[10] = "India";
    str[6] = "CURIOUSTAB";
    printf("%s\n", str);
    return 0;
}

#include<stdio.h>

int main()
{
    FILE *fp1, *fp2;
    fp1=fopen("file.c", "w");
    fp2=fopen("file.c", "w");
    fputc('A', fp1);
    fputc('B', fp2);
    fclose(fp1);
    fclose(fp2);
    return 0;
}

#include<stdio.h>

int main()
{
    int k=1;
    printf("%d == 1 is" "%s\n", k, k==1?"TRUE":"FALSE");
    return 0;
}

#include<stdio.h>

int main()
{
    FILE *ptr;
    char i;
    ptr = fopen("myfile.c", "r");
    while((i=fgetc(ptr))!=NULL)
        printf("%c", i);
    return 0;
}

#include<stdio.h>

int main()
{
    float a=3.15529;
    printf("%2.1f\n", a);
    return 0;
}

#include<stdio.h>

int main()
{
    int a=250;
    printf("%1d\n", a);
    return 0;
}