/* 検索 */
        printf( "検索する単語を入力してください \n" );
        scanf("%s", istr);
        printf("%s\n", istr);
        i=0;
        int first = 0;
        int last = ct-1;
        int found = -1;
        int mid, scmp;
        while ( last>=first ){
            mid = (first+last)/2;
            i++;
            scmp = strcmp(istr,word[mid]);
            printf("%4d %4d %4d %4d %s %s \n",first,last,mid,scmp,istr,word[mid]);
            if (scmp==0){
                found = mid;
            }
            if(scmp>0){
                first = mid+1;
            }
            else{
                last = mid-1;
            }
            if (scmp==0)break;
        }
        if (0>found){
            printf( "ありません\n" );
            printf( "%d 回比較しました\n",i );
        }else{
            printf( "%s \n",jimi[found] );
            printf( "%d 回比較しました\n",i );
        }
        /*この後に return 0; が来ます*/