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Submission #135008

# Submission time Handle Problem Language Result Execution time Memory
135008 2019-07-23T14:13:08 Z Lawliet Circle selection (APIO18_circle_selection) C++14
0 / 100
 1304 ms 109476 KB 
#include <bits/stdc++.h>

#define MAX 300010
#define R first.first
#define I first.second
#define X second.first
#define Y second.second

using namespace std;
typedef long long int lli;
typedef pair<lli,lli> pii;
typedef pair<pii,pii> circle;

int n;
int n1, n2, n3;

int x[MAX];
int r[MAX];
int removed[MAX];

vector<circle> v;

set<pii> points;

set<pii>::iterator it;

int main()
{
	scanf("%d",&n);

	memset(removed , -1 , sizeof(removed));

	for(int g = 1 ; g <= n ; g++)
	{
		scanf("%d %d %d",&n1,&n2,&n3);

		circle k;

		k = {{-n3 , g} , {n1 , n2}};

		points.insert({n1 - n3 , g});
		points.insert({n1 + n3 , g});

		x[g] = n1;
		r[g] = n3;

		v.push_back( k );
	}	

	sort(v.begin() , v.end());

	for(int g = 0 ; g < n ; g++)
	{
		if(removed[ v[g].I ] != -1) continue;

		it = points.lower_bound(make_pair(x[v[g].I] - r[v[g].I] , -1));

		while(!points.empty())
		{
			if(x[v[g].I] + r[v[g].I] < it->first) break;

			int cur = it->second;

			points.erase({x[cur] - r[cur] , cur});
			points.erase({x[cur] + r[cur] , cur});

			removed[cur] = v[g].I;

			it = points.lower_bound(make_pair(x[v[g].I] - r[v[g].I] , -1));
		}
	}

	for(int g = 1 ; g <= n ; g++)
		printf("%d ",removed[g]);
}

Compilation message

circle_selection.cpp: In function 'int main()':
circle_selection.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
circle_selection.cpp:35:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d",&n1,&n2,&n3);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1528 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Incorrect 3 ms 1528 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1298 ms 54204 KB Output is correct
2 Runtime error 1304 ms 109476 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 2808 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 706 ms 103856 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1528 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Incorrect 3 ms 1528 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1528 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Incorrect 3 ms 1528 KB Output isn't correct
4 Halted 0 ms 0 KB -