AC日记——T-Shirt Hunt codeforces 807b
思路:
水题;
代码:
#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm> using namespace std; int p,x,y,ai[],ans; bool check(int xx)
{
if(xx<y) return false;
int i=(xx/)%;
for(int j=;j<=;j++)
{
i=(i*+)%;
if(p==+i) return true;
}
return false;
} int main()
{
scanf("%d%d%d",&p,&x,&y);
int pos=x;
while(pos>=y)
{
if(check(pos))
{
printf("");
return ;
}
pos-=;
}
while(x<y) x+=,ans++;
while()
{
if(check(x)||check(x-))
{
printf("%d",ans);
return ;
}
x+=,ans++;
}
return ;
}
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