#include int compare( int a,int b,int c){ int max=a; if ( max < b ) max=b; if ( max < c ) max=c; return max ;}void main(void){ int a,b,c; printf("input a b c: "); scanf("%d%d%d", &a,&b,&c ); printf("max=%d\n", compare(a,b,c) );}