Hi guys ! could you help me to resolve my problem of this quiz ?prob-12.pdf

this is my code :

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

int main()
{
    int counter;
int num;

scanf("%d", &counter);
printf("Case #1");
while(counter != 0)
    {
        printf("\n%d", counter);
counter --;
sleep(1);
}
    for(num=5)
    {
        printf("test");
}
    return 0;
}
I've search about this article in youtube, google and my university's site, but it doesn't help, I couldn't find the answer.

the code's result say this :
Code:
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/audynaufal/CLionProjects/untitled/cmake-build-debug --target untitled -- -j 2Scanning dependencies of target untitled
[ 50%] Building C object CMakeFiles/untitled.dir/main.c.o
/Users/audynaufal/CLionProjects/untitled/main.c:15:9: warning: implicit declaration of function 'sleep' is invalid in C99 [-Wimplicit-function-declaration]
        sleep(1);
        ^
/Users/audynaufal/CLionProjects/untitled/main.c:17:14: error: expected ';' in 'for' statement specifier
    for(num=5)
             ^
/Users/audynaufal/CLionProjects/untitled/main.c:17:14: error: expected ';' in 'for' statement specifier
1 warning and 2 errors generated.
make[3]: *** [CMakeFiles/untitled.dir/main.c.o] Error 1
make[2]: *** [CMakeFiles/untitled.dir/all] Error 2
make[1]: *** [CMakeFiles/untitled.dir/rule] Error 2
make: *** [untitled] Error 2
please help me guys.