c语言-整除问题

include<stdio.h>

int main(){

int M,N;
scaf("%d%d",&M,&N);

if ((M%N)==0)
 {

printf("YES");

}

else 
 {

 printf("NO");

}

return 0;
}

不知道错在哪儿？求助求助！！！！！！！！！

以下是终端的反馈：**

Main.c: In function 'main':
Main.c:4:5: warning: implicit declaration of function 'scaf' [-Wimplicit-function-declaration]
``
scaf("%d%d",&M,&N);
^

/tmp/ccGkpHKO.o: In function `main':
Main.c:(.text.startup+0x24): undefined reference to `scaf'
collect2: error: ld returned 1 exit status