第十四届蓝桥杯集训——练习解题阶段(无序阶段)-ALGO-460 计算和差

#include <stdio.h>
#include <string.h>
#include <math.h>
int main()
{
	int a, b, c;
	scanf("%d %d %d", &a, &b, &c);
	if (c == 1)
		printf("%d", a + b);
	else
		printf("%d", a-b);
	return 0;
}

#include <iostream>
using namespace std;

int main()
{
	int a, b, k;
	cin >> a >> b >> k;
	if (k == 1)
	{
		cout << a + b << endl;
	}
	else// (k == 2)
	{
		cout << a - b << endl;
	}
	return 0;
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Scanner;
import java.util.StringTokenizer;

public class Main {

	// 快速输入
	static class Reader {
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer tokenizer = new StringTokenizer("");

		boolean hasNext() throws IOException {
			if (next() == null) {
				return false;
			}
			return true;
		}

		String next() throws IOException {
			while (!tokenizer.hasMoreTokens()) {
				tokenizer = new StringTokenizer(reader.readLine());
			}
			return tokenizer.nextToken();
		}

		int nextInt() throws IOException {
			return Integer.parseInt(next());
		}

		double nextDouble() throws IOException {
			return Double.parseDouble(next());
		}
	}

	static int ans=0;
	public static void main(String[] args) throws IOException {
		Reader in=new Reader();
		PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
		int a=in.nextInt();
		int b=in.nextInt();
		int k=in.nextInt();
		if(k==1) {
			System.out.println(a+b);
		}else {
			System.out.println(a-b);
		}
	}
}

a,b,k=map(int,input().split())
if k==1 :
    print(a+b)
else:
    print(a-b)