问题 A: 求两数之和 计算a+b

问题 A: 求两数之和 计算a+b

时间限制: 1 Sec  内存限制: 10 MB
提交: 2517  解决: 1728
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题目描述

从键盘上输入两个数据a和b,计算a和b之和并输出

(有输入,有输出)

#include <iostream>
#include <string>
using namespace std;
int n,i,j,ans;
string s;
char get(int i)
{
if(i<n) return s[i];
else return s[i-n];
}
int main()
{
cin>>s;
n=s.size();
ans=0;
for(i=1;i<=n-1;i++)
{
for(j=0;j<=n-1;j++)
if(get(i+j)<get(ans+j))
{
ans=i;
break;
}
else if(get(i+j)>get(ans+j)) break;
}
for(j=0;j<=n-1;j++) cout<<get(ans+j);
cout<<endl;
return 0;
}

输入

两个整数 a,b (0<=a,b<=100)

输出

输出 a+b的值

样例输入

1 2

样例输出

3

提示


Q: Where are the input and the output? A: Your program shall always read input from stdin (Standard Input) and write output to stdout (Standard Output). For example, you can use 'scanf' in C or 'cin' in C++ to read from stdin, and use 'printf' in C or 'cout' in C++ to write to stdout. You shall not output any extra data to standard output other than that required by the problem, otherwise you will get a "Wrong Answer". User programs are not allowed to open and read from/write to files. You will get a "Runtime Error" or a "Wrong Answer" if you try to do so. Here is a sample solution for problem 1000 using C++/G++:


#include <iostream>
using namespace std;
int main()
{
int a,b;
cin >> a >> b;
cout << a+b << endl;
return 0;
}


It's important that the return type of main() must be int when you use G++/GCC,or you may get compile error. Here is a sample solution for problem 1000 using C/GCC:


#include <stdio.h>

int main()
{
int a,b;
scanf("%d %d",&a, &b);
printf("%d\n",a+b);
return 0;
}


Here is a sample solution for problem 1000 using PASCAL:


program p1000(Input,Output); 
var
a,b:Integer;
begin
Readln(a,b);
Writeln(a+b);
end.


Here is a sample solution for problem 1000 using JAVA: Now java compiler is jdk 1.5, next is program for 1000


import java.io.*;
import java.util.*;
public class Main
{
public static void main(String args[]) throws Exception
{
Scanner cin=new Scanner(System.in);
int a=cin.nextInt();int b=cin.nextInt();
System.out.println(a+b);
}
}


Old program for jdk 1.4


import java.io.*;
import java.util.*;

public class Main
{
public static void main (String args[]) throws Exception
{
BufferedReader stdin =
new BufferedReader(
new InputStreamReader(System.in));

String line = stdin.readLine();
StringTokenizer st = new StringTokenizer(line);
int a = Integer.parseInt(st.nextToken());
int b = Integer.parseInt(st.nextToken());
System.out.println(a+b);
}
}

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