PAT (Advanced Level) Practice 1001 A+B Format (20 分)
阿新 • • 發佈:2018-12-24
Calculate a+b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less than four digits).
Input Specification:
Each input file contains one test case. Each case contains a pair of integers a and b where −106≤a,b≤106. The numbers are separated by a space.
Output Specification:
For each test case, you should output the sum of a and b in one line. The sum must be written in the standard format.
Sample Input:
-1000000 9
Sample Output:
-999,991
程式碼如下:
#include <cstdio> #include <cstring> #include <algorithm> #include <iostream> #include <stack> #include <math.h> using namespace std; stack<int>re; int a,b,c; int flag=0; int main() { scanf("%d%d",&a,&b); int c=a+b; if(c==0) { printf("0\n"); return 0; } if(c>0) flag=1; while (c) { re.push(c%1000); c/=1000; } if(!flag) printf("-"); int Size=re.size(); for (int i=0;i<Size;i++) { int temp=re.top(); re.pop(); if(i) printf("%03d",abs(temp)); else printf("%d",abs(temp)); printf("%c",i==Size-1? '\n':','); } return 0; }