Library Functions - General Questions

What will be the output of the program?

#include <stdio.h>
#include <stdlib.h>

int main(void) {
    printf("%ld\n", strtol("ff", NULL, 16));
    return 0;
}

What will be the output of the program?

#include <stdio.h>
#include <math.h>

int main(void) {
    printf("%.0f\n", pow(2, 10));
    return 0;
}

Which function converts a string to a double?

What will be the output of the program?

#include <stdio.h>
#include <stdlib.h>

int main(void) {
    printf("%d %d\n", abs(-9), atoi("123abc"));
    return 0;
}

What will be the output of the program?

#include <stdio.h>
#include <math.h>

int main(void) {
    printf("%.1f\n", sqrt(49.0));
    return 0;
}