View Code of Problem 120

#include<stdio.h>
#include<stdlib.h>
int main(){
	int H1,H2,M1,M2,T1,T2,temp,i,j;
	while(scanf("%d:%d\n%d:%d",&H1,&M1,&H2,&M2)!=EOF){
		int count=0;
		T1=H1*60+M1;
		T2=H2*60+M2;
		if(T1>T2){
			temp=T1;
			T1=T2;
			T2=temp;
		}
		for(i=T1;i<=T2;i++){
			for(j=2;j<i/60*2500+i%60;){
				if((i/60*2500+i%60)%j==0)
				break;
				else{
					if(j==i/60*2500+i%60-1)
					count++;
					j++;
				}
			}
		} 
		printf("%d\n",count);
	}
}