AcWing 794. 高精度除法
原题链接
简单
作者:
我要出去乱说
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2021-02-05 00:37:48
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所有人可见
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阅读 371
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int r; //余数取成全局变量
vector<int> div(vector<int> A, int b)
{
vector<int> C;
for (int i = A.size() - 1; i >= 0; i -- ) //除法从最高位开始
{
r = A[i] + r * 10;
C.push_back(r / b);
r %= b;
}
reverse(C.begin(), C.end()); //翻转后才能去前导零
while (C.size() > 1 && C.back() == 0) C.pop_back();
return C;
}
int main()
{
string a;
int b;
cin >> a >> b;
vector<int> A, C;
for (int i = a.size() - 1; i >= 0; i -- ) A.push_back(a[i] - '0');
C = div(A, b);
for (int i = C.size() - 1; i >= 0; i -- ) cout << C[i];
cout << endl << r << endl;
return 0;
}