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程序写的很简单,没用那个欧拉,数据测试没问题,但是哇了。#include<iostream> using namespace std; int main() { unsigned long x,y,m,n,L; unsigned long k=0; unsigned long x1,y1; cin>>x>>y>>m>>n>>L; x1=x; y1=y; if(x!=y&&m==n) { cout<<"Impossible"<<endl; return 0; } while(x!=y) { x=x+m; if(x>=L) x=x%L; y=y+n; if(y>=L) y=y%L; if(x==x1&&y==y1) { cout<<"Impossible"<<endl; return 0; } k++; } cout<<k<<endl; return 1; } 说是Time Limit Exceeded了,高手帮看看。 Followed by:
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