28.
#include?"stdio.h"int?main(int?argv,char?*argc[]){
int?n,m;
printf("Input?n(int?0<=n)...\nn=");
if(scanf("%d",&n)!=1?||?n<0){
printf("Input?error,?exit...\n");
return?0;
}
for(m=0;m*m<=n;m++);
printf("It?is?%d.\n",m-1);
return?0;?
}
運行樣例:
29.
把28題中的m*m<=n改成m*m*m<=n即可。