c语言校运动会管理系统，建立系统储存结构，录入运动会项目信息，修改项目信息，删除项目信息，计算每个项目的院排名，对所有项目统计每个院总成绩并排名

好的，这是一个比较复杂的问题。根据你的需求，我会给出一个简单的C语言校运动会管理系统的设计方案，供你参考。

首先，我们需要定义以下数据结构：

#define MAX_NAME_LEN 50
#define MAX_TEAM_NUM 10
#define MAX_EVENT_NUM 20

// 队伍信息
typedef struct {
    char name[MAX_NAME_LEN];    // 队名
    int score;                  // 得分
} Team;

// 项目信息
typedef struct {
    char name[MAX_NAME_LEN];    // 项目名
    int team_num;               // 参赛队伍数
    Team teams[MAX_TEAM_NUM];   // 队伍信息
} Event;

// 运动会信息
typedef struct {
    int event_num;              // 项目数
    Event events[MAX_EVENT_NUM];// 项目信息
} SportsMeeting;

然后，我们需要实现以下功能：

1. 录入运动会项目信息

void add_event(SportsMeeting* sm, const char* name, int team_num, const char** team_names) {
    if (sm->event_num >= MAX_EVENT_NUM) {
        printf("Error: too many events\n");
        return;
    }
    Event* event = &sm->events[sm->event_num++];
    strncpy(event->name, name, MAX_NAME_LEN);
    event->team_num = team_num;
    for (int i = 0; i < team_num; i++) {
        strncpy(event->teams[i].name, team_names[i], MAX_NAME_LEN);
        event->teams[i].score = 0;
    }
}

2. 修改项目信息

void modify_event(SportsMeeting* sm, int event_idx, const char* name, int team_num, const char** team_names) {
    if (event_idx < 0 || event_idx >= sm->event_num) {
        printf("Error: invalid event index\n");
        return;
    }
    Event* event = &sm->events[event_idx];
    strncpy(event->name, name, MAX_NAME_LEN);
    event->team_num = team_num;
    for (int i = 0; i < team_num; i++) {
        strncpy(event->teams[i].name, team_names[i], MAX_NAME_LEN);
    }
}

3. 删除项目信息

void remove_event(SportsMeeting* sm, int event_idx) {
    if (event_idx < 0 || event_idx >= sm->event_num) {
        printf("Error: invalid event index\n");
        return;
    }
    for (int i = event_idx; i < sm->event_num - 1; i++) {
        sm->events[i] = sm->events[i + 1];
    }
    sm->event_num--;
}

4. 计算每个项目的院排名

void calc_rank(Event* event) {
    int team_num = event->team_num;
    Team* teams = event->teams;
    for (int i = 0; i < team_num; i++) {
        for (int j = i + 1; j < team_num; j++) {
            if (teams[i].score < teams[j].score) {
                Team temp = teams[i];
                teams[i] = teams[j];
                teams[j] = temp;
            }
        }
    }
}

5. 对所有项目统计每个院总成绩并排名

void print_sports_meeting_rank(const SportsMeeting* sm) {
    int team_num = 0;
    Team teams[MAX_TEAM_NUM];
    memset(teams, 0, sizeof(teams));
    for (int i = 0; i < sm->event_num; i++) {
        const Event* event = &sm->events[i];
        for (int j = 0; j < event->team_num; j++) {
            const Team* team = &event->teams[j];
            int k;
            for (k = 0; k < team_num; k++) {
                if (strcmp(teams[k].name, team->name) == 0) {
                    break;
                }
            }
            if (k == team_num) {
                strncpy(teams[team_num].name, team->name, MAX_NAME_LEN);
                team_num++;
            }
            teams[k].score += team->score;
        }
    }
    for (int i = 0; i < team_num; i++) {
        for (int j = i + 1; j < team_num; j++) {
            if (teams[i].score < teams[j].score) {
                Team temp = teams[i];
                teams[i] = teams[j];
                teams[j] = temp;
            }
        }
    }
    printf("Rank\tName\tScore\n");
    for (int i = 0; i < team_num; i++) {
        printf("%d\t%s\t%d\n", i + 1, teams[i].name, teams[i].score);
    }
}

以上就是这个简单的校运动会管理系统的设计方案，你可以根据需要进行修改和完善。