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Submission #1067142

# Submission time Handle Problem Language Result Execution time Memory
1067142 2024-08-20T11:59:48 Z 0npata Tiles (BOI24_tiles) C++17
0 / 100
 92 ms 9160 KB 
#include<bits/stdc++.h>
using namespace std;

#define int long long
#define vec vector

const int INF = 1e17;

int32_t main() {
	int n, m;
	cin >> n >> m;

	vec<pair<int, int>> ps(n);
	for(int i = 0; i<n; i++) {
		cin >> ps[i].first >> ps[i].second;
	}

	vec<pair<int, int>> ps_filt{ps[0]};

	for(int i = 1; i<n-1; i++) {
		if(ps_filt.back().first == ps[i].first) {
			ps_filt.pop_back();
			ps_filt.push_back(ps[i]);
		}
		else {
			if(ps[i].second != ps[i+1].second) {
				ps_filt.push_back(ps[i]);
			}
		}
	}

	if(ps_filt[0].second % 2) {
		cout << ps_filt[0].first << '\n';
		return 0;
	}

	int ans = 0;
	for(int i = 1; i<ps_filt.size(); i++) {
		if(ps_filt[i].second % 2) {
			cout << ps_filt[i].first << '\n';
			return 0 ;
		}
	}
	cout << ps_filt.back().first << '\n';

}

Compilation message

Main.cpp: In function 'int32_t main()':
Main.cpp:38:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 1; i<ps_filt.size(); i++) {
      |                 ~^~~~~~~~~~~~~~~
Main.cpp:37:6: warning: unused variable 'ans' [-Wunused-variable]
   37 |  int ans = 0;
      |      ^~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 9160 KB Output is correct
2 Correct 47 ms 5076 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -