Input
Each input file contains one test case. Each case contains a pair of integers a and b where -1000000 <= a, b <= 1000000. The numbers are separated by a space.
Output
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
//正负数情况看能否分类处理,想好算法后再处理写代码 #include <stdio.h> int main() { int a,b,sum; while(scanf("%d %d",&a,&b) != EOF){ sum = a+b; if(sum < 0){ sum = -sum; printf("-"); //转化成正数处理 } if(sum >= 1000000){ printf("%d,%03d,%03d",sum/1000000,(sum%1000000)/1000,sum%1000); } else if(sum >= 1000){ printf("%d,%03d",sum/1000,sum%1000); } else{ printf("%d",sum); } } return 0; }
主要是在数据输出格式的处理~水过