题目(清华大学考研真题): #include<stdio.h> #include<string.h> struct Student { char num[4]; char name[8]; char sex[2]; int old; }student[1000]; int main() { int N,M,i,j; scanf("%d",&N); for(i=0;i<N;i++) { scanf("%s %s %s %d",student[i].num,student[i].name,s...