帮我解读一下这段程序

Question

#include<stdio.h> #include<stdlib.h> #include<time.h> #include<string.h> #define N 3 #define M 10 int add = N-1; int sum[N]={0},Max[N],Min[N]; float aver[N]={0}; struct player {int num; char name[8]; int score[M]; }; void Inistplayer(struct player a[],int n) {int i; for(i=0;i<n;i++) scanf("%d %s",&a[i].num,&a[i].name); } void Inputscore(int score[],int n) {int i; for(i=0;i<n;i++) score[i]=1+(int)10rand()/(RAND_MAX+1); } void sort(struct player a[],float b[],int n) {int i,k,j,t; float temp; char str[8]; for(i=0;i<n;i++) {k=i; for(j=i+1;j<n;j++) if(b[k]>b[j]) k=j; if(k!=i) {temp=b[i]; b[i]=b[k]; b[k]=temp; strcpy(str,a[i].name); strcpy(a[i].name,a[k].name); strcpy(a[k].name,str); t=a[i].num; a[i].num=a[k].num; a[k].num=t; } } } void main() {int flag=1,n,i,m,j; FILE fp; fp = fopen("data.txt","w+"); struct player a[20]; printf("歌手比赛管理系统*******\n"); printf(" 1.输入选手数据 2. 评委打分 3.成绩排序 \n 4.数据查询"); printf(" 5.追加选手数据 6.写入读取文件\n 7.退出系统\n"); printf("*******************************************************************************\n"); while(flag) {printf("你想进行的操作:"); scanf("%d",&n); switch(n) { case 1:Inistplayer(a,N);break; case 2:srand((unsigned)time(NULL)); for(i=0;i<N;i++) { printf("%d位选手的成绩:",i+1); Inputscore(a[i].score,M); for(j=0;j<M;j++) printf("%d ",a[i].score[j]); printf("\n"); } break;

Answer 1

请用代码段