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Submission #427743

# Submission time Handle Problem Language Result Execution time Memory
427743 2021-06-14T21:07:02 Z lakshith_ Carnival Tickets (IOI20_tickets) C++14
11 / 100
 2 ms 588 KB 
#include "tickets.h"
#include <bits/stdc++.h>

#define ll long long 

#define what_is(a) cout << #a << " is " << a << "\n"

using namespace std;

ll diff(int val,vector<int> vec){
	ll r = 0;
	for(int a:vec){
		r += abs(a-val);
		//cout << abs(a-val) << " ";
	}
	//cout << "\n";
	return r;
}

long long find_maximum(int k, std::vector<std::vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
	assert(m==1);
	std::vector<std::vector<int>> answer;
	for (int i = 0; i < n; i++) {
		std::vector<int> row(m,0);
		answer.push_back(row);
	}
	allocate_tickets(answer);
	ll lo =0,hi=1000000000;
	vector<int> vec;
	for(int i=0;i<n;i++)
	vec.push_back(x[i][0]);
	while(lo<hi){
		ll l1 = lo + (hi-lo)/3,l2=hi - (hi-lo)/3;
		ll a = diff(l1,vec),b=diff(l2,vec);
		if(a==b)break;
		if(a<b){
			hi = l2;
		}else{
			lo = l1;
		}
	}
	//what_is(lo);
	//what_is(hi);
	return diff((lo+hi)/2,vec);
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 588 KB Output is correct

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 332 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 332 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 332 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 332 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 588 KB Output is correct
7 Runtime error 1 ms 332 KB Execution killed with signal 6
8 Halted 0 ms 0 KB -