tell me

#include<bits/stdc++.h>
using namespace std;

struct compare
{
    char str;
    int var;
};

compare arr[95+5];

int main()
{
    int n,j,i,k,a[100],l,mini=0,temp,cn,key,cn2,key2;
    string s;
    while(true)
    {
        for(i=1; i<=95; i++)
        {
            arr[i].var = 0;
            arr[i].str =  i + '!'-1;
        }

        getline(cin,s);
        k=s.length();

        for(j=0; j<k; j++)
        {

            if(s[j]>= 33 && s[j]<= 127)
            {
                arr[s[j] - '!'+ 1].var++;
            }
        }


        for(j=2; j<=95; j++)
        {
            key = arr[j].var;
            key2 = arr[j].str;

            i = j-1;
            while(i > 0 && arr[i].var > key  )
            {
                arr[i+1].var = arr[i].var;
                arr[i+1].str = arr[i].str;
                i = i-1;
            }

            arr[i+1].var = key;
            arr[i+1].str = key2;

        }
        for(i=1; i<=95; i++)
        {
            if(arr[i].var != 0 )
                printf("%d %d\n",int(arr[i].str),arr[i].var);
        }
        printf("\n\n");
    }
    return 0;
}