/*
    第２種情報処理技術者試験    平成5年度・春期・午後 問13
                                BohYoh Shibata PREPARATION
*/

#include <stdio.h>
#include <string.h>

main()
{
    static struct {
        char ccode[7];
        int  count;
        long gtime;
    } tbl[1000];
    FILE *fp;
    char ucode[14], date[7];
    int  utime, ntbl, cmp, k, m;
    long min, charge;

    fp = fopen("is_log", "r");
    ntbl = 0;
    while (fscanf(fp, "%s%s%d", ucode, date,
                      &utime ) != EOF) {
        cmp = 1;
        for (k = 0; k < ntbl; k++)
            if ((cmp = strncmp(tbl[k].ccode, ucode, 6)) >= 0)
                break;
        if (cmp == 0) {
            tbl[k].count++;
            tbl[k].gtime += utime;
        } else {
            for (m = ntbl;  m > k ; m--)
                tbl[m] = tbl[ m - 1 ];
            strncpy(tbl[k].ccode, ucode, 6);
            tbl[k].ccode[6]  = '\0';
            tbl[k].count = 1;
            tbl[k].gtime = utime;
            ntbl++;
        }
    }
    fclose(fp);
    printf("Information Service Account Report\n");
    printf("   Client Access   Time  Charge\n");
    printf("   Code   Count   (min)   (yen)\n");
    for (k = 0; k < ntbl; k++) {
        min = (tbl[k].gtime + 59 ) / 60;
        charge = min * 50;
        printf("%9s%7d%7ld%8ld\n",
                tbl[k].ccode, tbl[k].count, min, charge);
    }
}