Input / Output - General Questions

Which function writes a string followed by a newline to stdout?

Which format specifier reads a double with scanf?

What will be the output of the program?

#include <stdio.h>

int main(void) {
    printf("%05.1f\n", 3.14159);
    return 0;
}

What will be the output of the program?

#include <stdio.h>

int main(void) {
    printf("%s\n", "line1\tline2");
    return 0;
}

What will be the output of the program?

#include <stdio.h>

int main(void) {
    printf("%3d|%3d\n", 7, 1234);
    return 0;
}