hdoj1002A + B Problem II
2015-07-24 21:05
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A + B Problem II
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 261114 Accepted Submission(s): 50520
[align=left]Problem Description[/align]
I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.
[align=left]Input[/align]
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.
[align=left]Output[/align]
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.
[align=left]Sample Input[/align]
2
1 2
112233445566778899 998877665544332211
[align=left]Sample Output[/align]
Case 1:
1 + 2 = 3
Case 2:
112233445566778899 + 998877665544332211 = 1111111111111111110
#include<stdio.h> #include<string.h> #define N 1010 int a ,b ; char str1 ,str2 ; int main() { int len1,len2; int i,j,n; scanf("%d",&n); for(int m=0;m<n;m++) { scanf("%s",str1); scanf("%s",str2); printf("Case %d:\n%s + %s = ",m+1,str1,str2); memset(a,0,sizeof(a)); memset(b,0,sizeof(b)); len1=strlen(str1); for (j=0,i=len1-1;i>=0;i--) { a[j++]=str1[i]-'0'; } len2=strlen(str2); for(j=0,i=len2-1;i>=0;i--) { b[j++]=str2[i]-'0'; } for (i=0;i<N;i++) { a[i]+=b[i]; if(a[i]>=10) { a[i]-=10; a[i+1]++; } } for (i=N;(i>=0)&&(a[i]==0);i--); if(i>=0) for (j=0;i>=0;i--) printf("%d",a[i]); else printf("0"); if(m!=n-1) printf("\n\n"); else printf("\n"); } return 0; }
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