//结构体是好东西啊 #include<iostream> #include<algorithm> using namespace std; struct Student { int id; int score; }; bool compare(Student x,Student y) { if(x.score==y.score) { return x.id<y.id; } else { return x.score<y.score; } } int main() { Student stu[100]; int n; while(scanf("%d",&n)!=EOF) { for(int i=0; i<n; i++) { scanf("%d %d",&stu[i].id,&stu[i].score); } sort(stu,stu+n,compare); for(int i=0; i<n; i++) { printf("%d %d\n",stu[i].id,stu[i].score); } } }