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Submission #1027786

# Submission time Handle Problem Language Result Execution time Memory
1027786 2024-07-19T09:53:38 Z Issa Tiles (BOI24_tiles) C++17
0 / 100
 22 ms 9352 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define ent "\n"

const int maxn = 1e6 + 100;
const ll INF = (ll)1e18 + 100;
const int inf = 1e9 + 100;
const int MOD = 1e9 + 123;
const int maxl = 26;
const int P = 31;

int n, m;
int a[maxn];
int b[maxn];

void test(){
	cin >> n >> m;
	for(int i = 1; i <= n; i++){
		cin >> a[i] >> b[i];
	}
	vector<int> v;
	for(int i = 2; i <= n; i++){
		while(v.size() > 1){
			int k = v[v.size()-2], j = v.back();
			if(a[k] == a[j] && a[j] == a[i]) v.pop_back();
			else if(b[k] == b[j] && b[j] == b[i]) v.pop_back();
			else break;
		} v.push_back(i);
	}
	int ans = 0;
	for(int i: v){
		if(b[i] & 1) break;
		ans = a[i] - (a[i] & 1);
		if(a[i] & 1) break;
	}
	cout << ans;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int t; t = 1;
    while(t--) test();
    cout << ent;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2516 KB Output is correct
5 Incorrect 0 ms 2396 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2516 KB Output is correct
5 Incorrect 0 ms 2396 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 4 ms 2832 KB Output is correct
3 Correct 22 ms 7900 KB Output is correct
4 Incorrect 12 ms 7268 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 2396 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Incorrect 14 ms 9352 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 7900 KB Output is correct
2 Incorrect 14 ms 7392 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2516 KB Output is correct
5 Incorrect 0 ms 2396 KB Output isn't correct
6 Halted 0 ms 0 KB -