杭电 1002题 A+B Problem II
2018-02-02 21:10
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Problem Description
I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.
Input
The first line of the input contains an integer T(1<=T<=20) which means the number of test cases. Then T lines follow, each line consists of two positive integers, A and B. Notice that the integers are very large, that means you should not process them by using 32-bit integer. You may assume the length of each integer will not exceed 1000.
Output
For each test case, you should output two lines. The first line is “Case #:”, # means the number of the test case. The second line is the an equation “A + B = Sum”, Sum means the result of A + B. Note there are some spaces int the equation. Output a blank line between two test cases.
Sample Input
2
1 2
112233445566778899 998877665544332211
Sample Output
Case 1:
1 + 2 = 3
Case 2:
112233445566778899 + 998877665544332211 = 1111111111111111110
I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.
Input
The first line of the input contains an integer T(1<=T<=20) which means the number of test cases. Then T lines follow, each line consists of two positive integers, A and B. Notice that the integers are very large, that means you should not process them by using 32-bit integer. You may assume the length of each integer will not exceed 1000.
Output
For each test case, you should output two lines. The first line is “Case #:”, # means the number of the test case. The second line is the an equation “A + B = Sum”, Sum means the result of A + B. Note there are some spaces int the equation. Output a blank line between two test cases.
Sample Input
2
1 2
112233445566778899 998877665544332211
Sample Output
Case 1:
1 + 2 = 3
Case 2:
112233445566778899 + 998877665544332211 = 1111111111111111110
代码
#include<iostream> #include<string.h> #include<stdlib.h> using namespace std; #define M 40 #define N 1005 //该函数将两个字符串转换为整型数组并相加,最后输出 void sum(const char a[],const char b[]) { int n1[1005],n2[1005]; //定义将字符串转换为的整型数组 int c[1005]; //存储结果值 int len1,len2,max; //存储两个数组的长度以及二者的最大值 int g=0; //存储进位,为0或者1 int temp; len1=strlen(a); len2=strlen(b); //初始化两个数组 for(int i=0;i<1005;i++) { n1[i]=0; n2[i]=0; } //将字符串转换为整型数组,利用ASCII的差值 for(int i=0;i<len1;i++) { n1[len1-1-i]=a[i]-'0'; } for(int i=0;i<len2;i++) { n2[len2-1-i]=b[i]-'0'; } max= len1>len2? len1:len2; for(int i=0;i<max;i++) { temp=n1[i]+n2[i]+g; g=(temp>=10? 1:0); c[i]=temp%10; } if(g==1) { c[max]=1; max++; } for(int i=max-1;i>=0;i--) { cout<<c[i]; } cout<<endl; } int main () { char str[M] ; int T; cin>>T; for(int i=0;i<2*T;i=i+2) { cin>>str[i]; cin>>str[i+1]; cout<<"Case "<<(i/2+1)<<":"<<endl; cout<<str[i]<<" + "<<str[i+1]<<" = "; sum(str[i],str[i+1]); //计算并输出结果 //判断最后一个换行是否输出(格式要求) if((i/2+1)!=T) { cout<<endl; } } return 0; }
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