开门人和关门人

 1 #include <stdio.h>
 2 #include <string.h>
 3 
 4 int main(){
 5     int N;
 6     int M;
 7     int i;
 8     char ID[16];
 9     char minID[16];
10     char maxID[16];
11     char s1[9];
12     char s2[9];
13     char time1[7];
14     char time2[7];
15     char minTime[7];
16     char maxTime[7];
17 
18     scanf("%d",&N);
19 
20     while(N--){
21         scanf("%d",&M);
22 
23         for(i=0;i<M;i++){
24             scanf("%s%s%s",ID,s1,s2);
25             time1[0]=s1[0];
26             time1[1]=s1[1];
27             time1[2]=s1[3];
28             time1[3]=s1[4];
29             time1[4]=s1[6];
30             time1[5]=s1[7];
31             time1[6]=‘\0‘;
32 
33             time2[0]=s2[0];
34             time2[1]=s2[1];
35             time2[2]=s2[3];
36             time2[3]=s2[4];
37             time2[4]=s2[6];
38             time2[5]=s2[7];
39             time2[6]=‘\0‘;
40 
41             if(i==0){
42                 strcpy(minID,ID);
43                 strcpy(maxID,ID);
44                 strcpy(minTime,time1);
45                 strcpy(maxTime,time2);
46                 continue;
47             }
48 
49             if(strcmp(time1,minTime)<0){
50                 strcpy(minID,ID);
51                 strcpy(minTime,time1);
52             }
53 
54             if(strcmp(time2,maxTime)>0){
55                 strcpy(maxID,ID);
56                 strcpy(maxTime,time2);
57             }
58         }
59 
60         printf("%s %s\n",minID,maxID);
61 
62 
63     }
64     
65     
66     return 0;
67 }