View Code of Problem 50

#include<stdio.h>
#include<string.h>
#define N 80

int main()
{
    int i=0,j=0,k=0,s;
    char str1[80]={0},str2[80]={0};
    gets(str1);
    s = strlen(str1);
    for(i=0;i<s;i++)
    {
        if(str1[i]>'9'||str1[i]<'0')
        {
            str1[i] = '*';
        }
    }
    for(i=0;i<s;i++)
    {
        if((str1[i] == '*' && str1[i+1] != '*') || str1[i] != '*')
            str2[j++] = str1[i];
    }
    for(i=0;i<=j;i++)
        printf("%c",str2[i]);

    printf("\n");
    return 0;
}

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