skyline.cpp

#include<iostream>
#include<cstdlib>
#include<ctime>
#include<cmath>
#include<unistd.h>
#include<cstdio>
#include<sstream>
#include<string.h>
using namespace std;


int main()
{
    int n;
    cin>>n;
    int sl[256];
    for(int i=0;i<256;i++)
    {
    	sl[i]=0;
    }
    for(int i=0;i<n;i++)
    {
    	int l,h,r;
    	cin>>l>>h>>r;
    	for(int j=l;j<r;j++)
    	{
    		if(h>sl[j])sl[j] = h;
    	}
    }
    int earth=0;
    for(int i=1;i<256;i++)
    {
    	if(earth!=sl[i])
    	{
    		cout<<i<<" "<<sl[i]<<" ";
    		earth = sl[i];
    	}
    }
}