A + B Problem II
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 204234 Accepted Submission(s): 39250
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.
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.
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
/* 1002 A + B Problem II 大数加法? */ #include<iostream> #include<cstring> using namespace std; char a[1001],b[1001]; int c[1001]; int main(){ int i,j,n,k,z,len1,len2,t,num; cin>>n; num=1; while(num<=n) { scanf("%s %s",a,b); len1=strlen(a)-1; len2=strlen(b)-1; k=0; z=0; for(;len1>=0&&len2>=0;len1--,len2--) { t=(a[len1]-'0')+(b[len2]-'0')+z; c[k++]=t%10; z=t/10; } while(len1>=0) { t=a[len1]-'0'+z; c[k++]=t%10; z=t/10; len1--; } while(len2>=0) { t=b[len2]-'0'+z; c[k++]=t%10; z=t/10; len2--; } printf("Case %d:\n",num++); printf("%s + %s = ",a,b); for(i=k-1;i>=0;i--) { cout<<c[i]; } printf("\n"); if(num<=n) printf("\n"); } return 0; }