i need help because of these constant nulls in C

Question

this is my code and I have been getting constant nulls from it so I do need a help

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

int main () {       
    char jojo[100];
    
    printf("name: ");
    scanf("[^\n]*c", &jojo);
    printf("Happy Birthday to %s.\n");
    
    printf("\n");       
    return 0;       
}

Answer 1

For starters in the call of scanf

scanf("[^\n]*c", &jojo);

you shall not use a pointer to the character array. Also you need to use the symbol '%' before the conversion specifiers.

Instead write

scanf("%[^\n]%*c", jojo);

In the call of printf you forgot to specify the argument that represents the array.

printf("Happy Birthday to %s.\n");

write

printf("Happy Birthday to %s.\n", jojo);

Here is a demonstrative program.

#include <stdio.h>

int main(void) 
{
    char jojo[100];
    
    printf( "name: " );
    scanf("%99[^\n]%*c", jojo );

    printf( "Happy Birthday to %s.\n", jojo );
    
    return 0;
}

The program output might look like

name: programmer Vaustin
Happy Birthday to programmer Vaustin