冥思苦想了很久,写出来的,虽然有点暴力,没有优化,但是连正确答案都算不出来...
有点小伤心(#@^@)
#include<iostream>
using namespace std;
int main()
{
int n=0;
int k=0;
int p=0;
int hotel_clour[n];
int cofe_price[n];
cin>>n>>k>>p;
for (int shuru=0;shuru<n;shuru++)
{
cin>>hotel_clour[shuru]>>cofe_price[shuru];
}

int ans=0;
for (int i=0;i<=n;i++)//"i" is the frist people
{
for (int j=0;j<=n;j++)//"j" is the second people
{
bool tu=0;
if (!(i==j))
{

if (hotel_clour[i]==hotel_clour[j])
{
if (i>j)
{
for (int we=j;we<i;we++)
{
if (cofe_price[we]<=p)
tu=1;
}
} else if (i<j)
{
for (int we=i;we<=j;we++)
{
if (cofe_price[we]<=p)
tu=1;
}
}
}
}
if (tu==1)ans++;
}
}
cout<<ans;
return 0;
}