If loop conditions ignored

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

int main()
{
    int input;
    printf ("Does this program work? Y/N:");
    scanf("%i",input);
    if ((input == 'y') || (input == 'Y'))
    {
        printf ("Success");
    }
    else
    {
        printf ("Error");
    }
}

$ gcc -W -Wall -Wextra foo.c
foo.c: In function ‘main’:
foo.c:8:5: warning: format ‘%i’ expects argument of type ‘int *’, but argument 2 has type ‘int’ [-Wformat]
foo.c:17:1: warning: control reaches end of non-void function [-Wreturn-type]
foo.c:8:10: warning: ‘input’ is used uninitialized in this function [-Wuninitialized]