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The Bits CodeForces - 1017B(组合数学,水)
阅读量:240 次
发布时间:2019-03-01

本文共 281 字,大约阅读时间需要 1 分钟。

注意要用long long

AC代码:

#include 
#include
#include
#include
#include
using namespace std;typedef long long ll;const int maxn=1e6+5;int main(){ int n; cin>>n; string a,b; cin>>a>>b; ll num01=0,num10=0,num11=0,num00=0; for(int i=0;i

 

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