C :

#include<stdio.h>
main() {
	int x,y,z;
	scanf("%d %d %d %d",&x,&y,&z);
	double a = (x + y + z) / 3.0;
	if(a >= 90) {
		int n = 0;  //统计在90分以上的科目数量
		if(x >= 90) {
			n++;
		}
		if(y >= 90) {
			n++;
		}
		if(z >= 90) {
			n++;
		}
		if(n == 3) {
			printf("beijing");
		} else if(n == 2) {
			printf("xiamen");
		} else {
			printf("guilin");
		}
	} else if(a >= 85) {
		if(x >= 85 && y >= 85 && z >= 85) {
			printf("shanghai");
		}  else {
			printf("nanjing");
		}
	}
}

C++ :

#include <bits/stdc++.h>
using namespace std;
int main(){
    int x,y,z,c = 0;
    cin>>x>>y>>z;
    double v = (x + y + z) / 3.0;
    if(v >= 90){
    	if(x >= 90) c++;
		if(y >= 90) c++;
		if(z >= 90) c++;
		
		if(c == 3) cout<<"beijing";
		else if(c == 2) cout<<"xiamen";
		else cout<<"guilin";
	}else if(v >= 85){
		if(x >= 85) c++;
		if(y >= 85) c++;
		if(z >= 85) c++;
		
		if(c == 3) cout<<"shanghai";
		else cout<<"nanjing";
	}
}

Java :

import java.util.Scanner;
public class Main
{
	public static void main(String[] Args)
	{
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		int d = (a+b+c)/3;
		int i = 0;
		int j = 0;
		if(a>=90) ++i;
		else if(a>=85) ++j;
		if(b>=90) ++i;
		else if(b>=85) ++j;
		if(c>=90) ++i;
		else if(c>=85) ++j;
		if(d>=90){

			if(i == 3) System.out.println("beijing");
			if(i == 2) System.out.println("xiamen");
			if(i == 1) System.out.println("guilin");
		}
		else if(d>=85){
			if(j == 3) System.out.println("shanghai");
			else System.out.println("nanjing");
		}

	}
}

Python :

# 输入字符串切割
s = input().split()
x = int(s[0])
y = int(s[1])
z = int(s[2])
# 平均分v
v = (x + y + z) / 3
# 判断是远途还是周边
if v >= 90:   #远途
    if x >= 90 and y >= 90 and z >= 90:
        print("beijing")
    elif (x >= 90 and y >= 90) or (x >= 90 and z >= 90) or (y >= 90 and z >= 90):
        print("xiamen")
    else:
        print("guilin")
elif 85 <= v < 90:   #周边
    if x>=85 and y>=85 and z>=85:
        print("shanghai")
    else:
        print("nanjing")