HDU 1212
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As we know, Big Number is always troublesome. But it's really important in our ACM. And today, your task is to write a program to calculate A mod B.
To make the problem easier, I promise that B will be smaller than 100000.
Is it too hard? No, I work it out in 10 minutes, and my program contains less than 25 lines.
To make the problem easier, I promise that B will be smaller than 100000.
Is it too hard? No, I work it out in 10 minutes, and my program contains less than 25 lines.
Input
The input contains several test cases. Each test case consists of two positive integers A and B. The length of A will not exceed 1000, and B will be smaller than 100000. Process to the end of file.
Output
For each test case, you have to ouput the result of A mod B.
Sample Input
2 312 7152455856554521 3250
Sample Output
251521#include<cstdio>#include<cstring>using namespace std;int main() // 同余定理 { //(a+b)%c=(a%c+b%c)%c; char a[1005]; //(a*b)%c=(a%c*b%c)%c; int b,i,t; while(scanf("%s %d",a,&b)!=EOF) { t=0; for(i=0;i<strlen(a);i++) { t=(t*10%b+(a[i]-'0')%b)%b; } printf("%d\n",t); } return 0;}非常简单的,利用同余定理题意 大数取模 a%b=?
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