有问题 Qsort'ing struct *array 基于 2 个参数
[英]Having problems Qsort'ing struct *array based on 2 parameters
问题描述
Eow，我正在开发一个程序，该程序将接收带有足球比赛列表的 a.txt，即球队、比分、日期等，并将这些存储在 struct *array（比赛数组）中。 在此之后，我运行比赛并根据赢/平/输以及他们的目标总和减去对他们的目标为球队分配分数，这些都存储在 struct *array (team array)
现在我想做的是首先根据积分对这个数组进行排序，如果它甚至基于目标总和，那么排名最高的球队排在第一位，排名垫底的球队排在最后。
我是 Qsort 的新手，所以我想知道我在这里搞砸了什么。 看来我的数据完全损坏了。
任何帮助将非常感激
更新：评论者帮助我弄清楚是什么破坏了我现在已修复的数据，并且还纠正了我的 compare_func 中用于 qsort 的逻辑错误，但是我的 qsort 仍然没有以任何逻辑方式对我的数组进行排序，但是它确实移动了我的结构. 所以我仍然在寻找一些帮助来解释为什么它不能正确排序。 代码已更新以反映更改
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#define MSIZE 132
#define TSIZE 12
typedef struct match
{
char weekday[10], date[10], time[10], home[10], away[10], spectators[10];
int home_goal, away_goal;
} match;
typedef struct team
{
char teamname[4];
int point, goals, goals_against, goals_sum;
} team;
void fill_match_array(match *match_array[MSIZE]);
void allocate_space_team(team *team_array[TSIZE]);
void fill_team_array(team *team_array[TSIZE], match *match_array[MSIZE]);
int compare_function(const void *left, const void *right);
int main(void){
match *match_array[MSIZE];
team *team_array[TSIZE];
allocate_space_team(team_array);
fill_match_array(match_array);
for (int i = 0; i < MSIZE; i++)
{
printf("%s | %s | %s | %s | %s | - | %d | - | %d | %s\n", match_array[i]->weekday, match_array[i]->date, match_array[i]->time, match_array[i]->home, match_array[i]->away, match_array[i]->home_goal, match_array[i]->away_goal, match_array[i]->spectators);
}
printf("\n\n\n\n\n");
fill_team_array(team_array, match_array);
for (int i = 0; i < TSIZE; i++)
{
printf("%s | %d | %d | %d | %d\n", team_array[i]->teamname, team_array[i]->point, team_array[i]->goals, team_array[i]->goals_against, team_array[i]->goals_sum);
}
printf("\n\n\n\n\n");
qsort(team_array, TSIZE, sizeof(team*), compare_function);
for (int i = 0; i < TSIZE; i++)
{
printf("%s | %d | %d | %d | %d\n", team_array[i]->teamname, team_array[i]->point, team_array[i]->goals, team_array[i]->goals_against, team_array[i]->goals_sum);
}
return 0;
}
void fill_match_array(match *match_array[MSIZE]){
FILE *output_file_pointer;
output_file_pointer = fopen("kampe-2020-2021.txt", "r");
char x[5], y[5], home_goal[10], away_goal[10];
for (int i = 0; i < MSIZE; i++)
{
match_array[i] = malloc(sizeof(match));
fscanf(output_file_pointer, "%s %s %s %s %s %s %s %s %s %s", match_array[i]->weekday, match_array[i]->date, match_array[i]->time, match_array[i]->home, x, match_array[i]->away, home_goal, y, away_goal, match_array[i]->spectators);
match_array[i]->home_goal = atoi(home_goal);
match_array[i]->away_goal = atoi(away_goal);
//printf("%s | %s | %s | %s | %s | %s | %d | %s | %d | %s\n", match_array[i]->weekday, match_array[i]->date, match_array[i]->time, match_array[i]->home, x, match_array[i]->away, match_array[i]->home_goal, y, match_array[i]->away_goal, match_array[i]->spectators);
}
fclose(output_file_pointer);
}
void allocate_space_team(team *team_array[TSIZE]){
for (int i = 0; i < TSIZE; i++)
{
team_array[i] = malloc(sizeof(team));
team_array[i]->goals = 0;
team_array[i]->goals_against = 0;
team_array[i]->goals_sum = 0;
team_array[i]->point = 0;
}
strcpy(team_array[0]->teamname, "SDR");
strcpy(team_array[1]->teamname, "ACH");
strcpy(team_array[2]->teamname, "LBK");
strcpy(team_array[3]->teamname, "BIF");
strcpy(team_array[4]->teamname, "OB");
strcpy(team_array[5]->teamname, "AGF");
strcpy(team_array[6]->teamname, "FCM");
strcpy(team_array[7]->teamname, "FCK");
strcpy(team_array[8]->teamname, "RFC");
strcpy(team_array[9]->teamname, "VB");
strcpy(team_array[10]->teamname, "AaB");
strcpy(team_array[11]->teamname, "FCN");
}
void fill_team_array(team *team_array[TSIZE], match *match_array[MSIZE]){
for (int i = 0; i < TSIZE; i++)
{
for (int j = 0; j < MSIZE; j++)
{
if (strcmp(team_array[i]->teamname, match_array[j]->home) == 0)
{
team_array[i]->goals += match_array[j]->home_goal;
team_array[i]->goals_against += match_array[j]->away_goal;
if (match_array[j]->home_goal > match_array[j]->away_goal)
{
team_array[i]->point += 3;
}
else if (match_array[j]->home_goal == match_array[j]->away_goal)
{
team_array[i]->point += 1;
}
}
else if (strcmp(team_array[i]->teamname, match_array[j]->away) == 0)
{
team_array[i]->goals += match_array[j]->away_goal;
team_array[i]->goals_against += match_array[j]->home_goal;
if (match_array[j]->away_goal > match_array[j]->home_goal)
{
team_array[i]->point += 3;
}
else if (match_array[j]->home_goal == match_array[j]->away_goal)
{
team_array[i]->point += 1;
}
}
}
team_array[i]->goals_sum = team_array[i]->goals - team_array[i]->goals_against;
}
}
int compare_function(const void *left, const void *right){
const team *a = (const team *)left;
const team *b = (const team *)right;
if (a->point > b->point)
{
return -1;
}
else if (a->point < b->point)
{
return 1;
}
if (a->goals_sum > b->goals_sum)
{
return -1;
}
else if (a->goals_sum < b->goals_sum)
{
return 1;
}
else if (a->goals_sum == b->goals_sum)
{
return 0;
}
}
使其运行的 txt.file -> 应命名为“kampe-2020-2021.txt”
Fre 11/09 19.00 SDR - FCM 2 - 0 2210
Son 13/09 14.00 ACH - RFC 0 - 3 1216
Son 13/09 14.00 LBK - AaB 0 - 0 2138
Son 13/09 16.00 BIF - FCN 3 - 2 6775
Son 13/09 18.00 OB - FCK 3 - 2 4315
Man 14/09 19.00 AGF - VB 4 - 2 7547
Lor 19/09 15.30 FCM - LBK 1 - 0 300
Son 20/09 14.00 FCK - BIF 1 - 2 277
Son 20/09 14.00 OB - FCN 1 - 1 300
Son 20/09 16.00 RFC - AGF 1 - 1 300
Son 20/09 18.00 VB - SDR 4 - 1 350
Man 21/09 19.00 AaB - ACH 1 - 0 280
Lor 26/09 17.00 FCM - RFC 1 - 0 300
Son 27/09 14.00 AGF - OB 4 - 2 300
Son 27/09 14.00 SDR - AaB 3 - 1 300
Son 27/09 16.00 BIF - ACH 2 - 1 300
Son 27/09 18.00 VB - FCK 2 - 2 350
Man 28/09 19.00 FCN - LBK 4 - 1 300
Fre 02/10 19.00 RFC - BIF 1 - 2 300
Son 04/10 14.00 LBK - SDR 2 - 2 300
Son 04/10 14.00 OB - VB 0 - 1 300
Son 04/10 16.00 AaB - AGF 1 - 1 280
Son 04/10 18.00 ACH - FCM 2 - 2 300
Son 04/10 20.00 FCK - FCN 3 - 2 220
Lor 17/10 16.00 FCM - OB 3 - 1 300
Son 18/10 14.00 AGF - ACH 3 - 0 300
Son 18/10 14.00 VB - LBK 3 - 2 350
Son 18/10 16.00 SDR - BIF 2 - 0 300
Son 18/10 18.00 FCK - AaB 1 - 2 242
Man 19/10 19.00 FCN - RFC 1 - 0 300
Fre 23/10 19.00 LBK - OB 0 - 3 300
Lor 24/10 18.00 BIF - FCM 2 - 3 300
Son 25/10 14.00 ACH - FCN 1 - 1 300
Son 25/10 16.00 RFC - SDR 1 - 2 300
Son 25/10 18.00 AGF - FCK 0 - 1 300
Man 26/10 19.00 AaB - VB 1 - 3 300
Fre 30/10 19.00 VB - RFC 0 - 3 350
Lor 31/10 16.00 FCN - FCM 4 - 1 300
Son 01/11 14.00 OB - ACH 1 - 0 300
Son 01/11 16.00 FCK - LBK 4 - 2 247
Son 01/11 18.00 AaB - BIF 2 - 1 300
Man 02/11 19.00 SDR - AGF 1 - 1 300
Fre 06/11 19.00 RFC - AaB 1 - 2 300
Son 08/11 14.00 FCN - VB 1 - 1 300
Son 08/11 14.00 LBK - AGF 1 - 2 300
Son 08/11 16.00 BIF - OB 3 - 1 300
Son 08/11 18.00 FCM - FCK 4 - 0 300
Son 08/11 20.00 ACH - SDR 0 - 3 300
Fre 20/11 19.00 LBK - ACH 1 - 1 300
Son 22/11 14.00 OB - SDR 1 - 1 300
Son 22/11 14.00 AaB - FCN 1 - 1 300
Son 22/11 16.00 AGF - FCM 1 - 2 300
Son 22/11 18.00 VB - BIF 0 - 2 350
Man 23/11 19.00 FCK - RFC 1 - 2 246
Fre 27/11 19.00 RFC - OB 2 - 1 300
Lor 28/11 16.00 FCM - AaB 0 - 0 300
Son 29/11 14.00 ACH - VB 3 - 1 300
Son 29/11 16.00 SDR - FCK 1 - 3 300
Son 29/11 18.00 FCN - AGF 3 - 1 300
Man 30/11 19.00 BIF - LBK 4 - 1 300
Fre 04/12 19.00 OB - AaB 2 - 1 300
Lor 05/12 16.00 VB - FCM 0 - 2 350
Son 06/12 14.00 SDR - FCN 2 - 1 300
Son 06/12 16.00 FCK - ACH 2 - 0 226
Son 06/12 18.00 LBK - RFC 0 - 3 300
Man 07/12 19.00 AGF - BIF 3 - 1 300
Fre 11/12 19.00 RFC - VB 3 - 1 300
Son 13/12 14.00 ACH - AGF 1 - 2 300
Son 13/12 14.00 AaB - LBK 3 - 2 300
Son 13/12 16.00 FCN - FCK 0 - 1 300
Son 13/12 18.00 BIF - SDR 2 - 1 300
Man 14/12 19.00 OB - FCM 1 - 1 300
Son 20/12 14.00 SDR - RFC 0 - 1 300
Son 20/12 14.00 LBK - VB 0 - 0 300
Son 20/12 16.00 AGF - AaB 3 - 0 300
Son 20/12 18.00 FCK - OB 1 - 1 242
Son 20/12 20.00 ACH - BIF 1 - 2 300
Man 21/12 19.00 FCM - FCN 3 - 1 300
Tir 02/02 18.00 RFC - ACH 3 - 0 0
Tir 02/02 20.00 VB - AGF 0 - 0 0
Ons 03/02 18.00 OB - LBK 0 - 1 0
Ons 03/02 20.00 AaB - FCK 2 - 3 0
Tor 04/02 18.00 FCM - SDR 1 - 2 0
Tor 04/02 20.00 FCN - BIF 0 - 1 0
Son 07/02 14.00 SDR - VB 0 - 1 0
Son 07/02 14.00 FCN - OB 0 - 2 0
Son 07/02 16.00 ACH - FCK 0 - 2 0
Son 07/02 18.00 AGF - LBK 1 - 0 0
Son 07/02 20.00 BIF - AaB 1 - 1 0
Man 08/02 19.00 RFC - FCM 1 - 2 0
Son 14/02 14.00 AaB - RFC 0 - 0 0
Son 14/02 14.00 VB - FCN 2 - 2 0
Son 14/02 16.00 LBK - BIF 0 - 4 0
Son 14/02 18.00 FCM - ACH 1 - 0 0
Son 14/02 20.00 OB - AGF 0 - 0 0
Man 15/02 19.00 FCK - SDR 3 - 2 0
Fre 19/02 19.00 AaB - FCM 0 - 2 0
Son 21/02 14.00 RFC - FCN 1 - 1 0
Son 21/02 14.00 ACH - OB 0 - 0 0
Son 21/02 16.00 AGF - SDR 2 - 0 0
Son 21/02 18.00 BIF - VB 2 - 1 0
Man 22/02 19.00 LBK - FCK 2 - 2 0
Fre 26/02 19.00 VB - ACH 0 - 0 0
Son 28/02 14.00 OB - RFC 2 - 1 0
Son 28/02 14.00 FCN - AaB 2 - 2 0
Son 28/02 16.00 FCK - AGF 3 - 3 0
Son 28/02 18.00 FCM - BIF 1 - 0 0
Man 01/03 19.00 SDR - LBK 1 - 4 0
Ons 03/03 18.00 AGF - FCN 0 - 1 0
Ons 03/03 18.00 ACH - AaB 2 - 1 0
Ons 03/03 20.00 FCK - VB 2 - 1 0
Tor 04/03 18.00 SDR - OB 1 - 1 0
Tor 04/03 18.00 LBK - FCM 2 - 0 0
Tor 04/03 20.00 BIF - RFC 0 - 0 0
Son 07/03 12.00 RFC - LBK 1 - 2 0
Son 07/03 14.00 BIF - FCK 2 - 1 0
Son 07/03 16.00 FCM - AGF 0 - 1 0
Son 07/03 18.00 FCN - ACH 2 - 2 0
Son 07/03 20.00 VB - OB 2 - 0 0
Man 08/03 19.00 AaB - SDR 1 - 0 0
Fre 12/03 19.00 LBK - FCN 0 - 3 0
Son 14/03 14.00 SDR - ACH 2 - 0 0
Son 14/03 14.00 VB - AaB 0 - 2 0
Son 14/03 16.00 OB - BIF 0 - 3 0
Son 14/03 18.00 FCK - FCM 0 - 0 0
Man 15/03 19.00 AGF - RFC 1 - 1 0
Son 21/03 17.00 BIF - AGF 1 - 1 0
Son 21/03 17.00 FCM - VB 5 - 0 0
Son 21/03 17.00 RFC - FCK 2 - 1 0
Son 21/03 17.00 ACH - LBK 1 - 2 0
Son 21/03 17.00 FCN - SDR 2 - 1 0
Son 21/03 17.00 AaB - OB 0 - 2 0
1 个解决方案
解决方案1
1 2021-12-11 00:11:56
team_array是指向团队的指针数组。 因此，指向该数组中元素的指针将是指向团队指针的指针。
int compare_function(const void *left, const void *right) {
const team *const *apnt = left;
const team *const *bpnt = right;
const team *a = *apnt;
const team *b = *bpnt;
总体而言，在您的代码中，我认为没有理由使用任何 arrays 指针，甚至动态分配 memory。 如果您知道要分配的 memory 的大小，则没有理由使用动态分配。 删除所有指针，将所有->更改为. 并且只需使用普通的 arrays。
qsort结构中的结构数组
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