C57-结构体2

1.输出第k个人的信息

#include<iostream>
using namespace std;

struct node{
	string name;
	int a, b, c;
}s[105];

int main(){
	int n, k;
	cin >> n >> k; 
	
	for (int i=1; i<=n; i++){
		cin >> s[i].name >> s[i].a >> s[i].b >> s[i].c;
	}
	
	//输出第k个人的信息
	cout << s[k].name <<" "<< s[k].a <<" "<< s[k].b <<" "<< s[k].c;  

	return 0;
}


 

2. 结构体分数排序

#include <bits/stdc++.h>
using namespace std;

int n;
struct node{
	string name;
	int score;
}a[105]; 

bool cmp(node x, node y) {		//自定义比较函数规则
	if (x.score == y.score) {
		return x.name < y.name;	//如果分数想通过，按照名字字典序进行排序 
	} 
	return x.score > y.score;	//按照分数 
}

int main(){
	cin >> n;
	for (int i=1; i<=n; i++){
		cin>>a[i].name>>a[i].score; 
	}
	sort(a+1, a+n+1, cmp);
	
	for (int i=1; i<=n; i++){
		cout << a[i].name << ' ' <<a[i].score << endl;
	}
	return 0;
}

3. string的占位符

#include<iostream>
using namespace std;
int main(){
//	char s[] = "hello xiaomawang";
	
	string s = "你好 小码王"; 
	cout << s << endl; 
	printf("%s\n", s.c_str()); 

	return 0;
}