Submission #90917

#	Time	Username	Problem	Language	Result	Execution time	Memory
90917		YottaByte	Trading (IZhO13_trading)	C++14	100 / 100	206 ms	9360 KiB

trading

#include <algorithm>
#include <stdlib.h>
#include <stdio.h>
#include <vector>

using namespace std;

#define pb push_back
#define mk make_pair
#define fr first
#define endl '\n'
#define sc second
#define pii pair < int, int >
#define piii pair < int, pair < int, int > >

const int N = 3e5 + 1;

int n, m, c, a[N];
int u[N * 4];
vector < piii > v;

inline void upd(int ql, int qr, int x, int v = 1, int l = 1, int r = n)
{
	if(u[v] == r - l + 1) return;
	if(l > qr || r < ql) return;
	
	if(l == r && !u[v])
	{
		a[l] = x;
		u[v] = 1;
		return;
	}
	else
	{
		int mid = l + r >> 1;
		upd(ql, qr, x, v + v, l, mid);
		upd(ql, qr, x, v + v + 1, mid + 1, r);
	}
	u[v] = u[v + v] + u[v + v + 1];
}

//void solve(int l, int r, int x)
//{
	//if(check(l, r) == 0)
	//{
		//upd(l, r, x);
	//}
	
	//if(l == r) return;
	
	//int m = l + r >> 1;
	//solve(l, m, x);
	//solve(m + 1, r, x);
//}

bool cmp( piii a, piii b )
{
	if( a.sc.fr - a.fr < b.sc.fr - b.fr )
	{
		return true;
	}
	else if(a.fr == b.fr)
	{
		if(a.sc.fr < b.sc.fr)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{
		return false;
	}
}

main()
{
	scanf("%d%d", &n, &m);
	c = m;
	
	for(int i = 1; i <= m; i++)
	{
		int l, r, x;
		scanf("%d%d%d", &l, &r, &x);
		v.pb(mk( x, mk( l, r ) ));
	}
	
	sort(v.begin(), v.end(), &cmp);
	
	//int cnt = 1;
	//for(auto i : v)
	//{
		//printf("%d %d %d %d\n", cnt++, i.sc.fr, i.sc.sc, i.fr);
	//}
	
	for(int i = 1; i <= m; i++)
	{
		int l = v[i - 1].sc.fr;
		int r = v[i - 1].sc.sc;
		int x = v[i - 1].fr;
		
		upd(l, r, i);
	}
	
	for(int i = 1; i <= n; i++)
	{
		int id = a[i] - 1;
		if(id >= 0)
			printf("%d ", v[id].fr + i - v[id].sc.fr);
		else printf("0 ");
	}
}
/**
5 2
2 4 6
1 3 2

2 6 7 8 0
----------------------
6 4
1 2 5
4 4 3
5 6 1
6 6 1

5 6 0 3 1 2
----------------------
10 9

7 8 9
10 10 8
9 10 8
10 10 4
6 8 4
3 9 4
4 9 3
1 3 3
4 8 2

3 4 5 5 6 7 9 10 10 9
----------------------
3 4

2 2 4
1 1 4
3 3 1
1 3 0

4 4 2
**/

Compilation message (stderr)

trading.cpp: In function 'void upd(int, int, int, int, int, int)':
trading.cpp:35:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = l + r >> 1;
             ~~^~~
trading.cpp: At global scope:
trading.cpp:79:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
trading.cpp: In function 'int main()':
trading.cpp:103:7: warning: unused variable 'x' [-Wunused-variable]
   int x = v[i - 1].fr;
       ^
trading.cpp:81:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
trading.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &l, &r, &x);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100