View Code of Problem 50

#include<stdio.h>
#include<string.h>
int main(){
	char str1[80], str2[80];
	gets(str1);
	int len = strlen(str1);
	int i, k = 0;
	for(i = 0; i < len; i ++){
		if(str1[i] >= '0' && str1[i] <= '9'){
			str2[k++] = str1[i];
		}else{
			str2[k++] = '*';
			while(!(str1[i] >= '0' && str1[i] <= '9')){
				i++;
			}
			i --;
		}
	}
	str2[k] = '\0';
	puts(str2);
	return 0;
}