输出与案例相同，为什么只通过了一个测试点

Question

#include<stdio.h>
struct time{
    int year;
    int month;
    int day;
};
struct book{
    char name[61];
    int n;
    struct time y;
    int p;
    int s;
};
int sort1(struct time*y1,struct time*y2);
void swap(struct book *s1,struct book *s2);
void comb1(struct book *s1,struct book *s2);
int main()
{
    int n,i,loc,j;
    scanf("%d",&n);
    getchar();
    struct book shu[n];
    for(i=0;i<n;i++){
        scanf("%s",shu[i].name);
        scanf("%d",&shu[i].n);
        scanf("%d",&shu[i].y.year);
        scanf("%d",&shu[i].y.month);
        scanf("%d",&shu[i].y.day);
        scanf("%d",&shu[i].p);
        scanf("%d",&shu[i].s);
    }
    for(loc=n-1;loc>0;loc--){
        for(j=0;j<loc;j++){
            comb1(&shu[j],&shu[j+1]);
        }
    }
    for(i=0;i<n;i++){
        printf("%s %d %d %d %d %d %d\n",shu[i].name,shu[i].n,shu[i].y.year,shu[i].y.month,shu[i].y.day,shu[i].p,shu[i].s);
    }
    return 0;
}
int sort1(struct time*y1,struct time*y2)
{
    if(y1->year<y2->year){
        return 1;
    }
    else if(y1->year==y2->year){
        if(y1->month<y2->month){
            return 1;
        }
        else if(y1->month==y2->month){
            if(y1->day<y2->day){
                return 1;
            }
            else if(y1->day==y2->day){
                return 0;
            }
        }
    }
}
void swap(struct book *s1,struct book *s2)
{
    struct book temp;
    temp=*s1;
    *s1=*s2;
    *s2=temp;
}
void comb1(struct book *s1,struct book *s2)
{
    if((s1->p)>(s2->p)){
        swap(s1,s2);
    }
    else if((s1->p)==(s2->p)){
        if(sort1(&(s1->y),&(s2->y))==1){
            swap(s1,s2);
        }
        else if(sort1(&(s1->y),&(s2->y))==0){
            if(s1->n<s2->n){
                swap(s1,s2);
            }
            else if(s1->n==s2->n){
                if(s1->s<s2->s){
                    swap(s1,s2);
                }
            }
        }
        
    }
}

Answer 1

你的sort1函数中少一种返回值

int sort1(struct time* y1, struct time* y2)
{
    if (y1->year < y2->year) {
        return 1;
    }
    else if (y1->year == y2->year) {
        if (y1->month < y2->month) {
            return 1;
        }
        else if (y1->month == y2->month) {
            if (y1->day < y2->day) {
                return 1;
            }
            else if (y1->day == y2->day) {
                return 0;
            }
        }
    }
    return 2;//少一种类型
}