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)