oj.uz

답안 #807140

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
807140 2023-08-04T14:02:17 Z rnl42 Passport (JOI23_passport) C++14
16 / 100
 433 ms 1048576 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long

string to_string(string s) { return s; }
template <typename T> string to_string(T v) {
	bool first = true;
	string res = "[";
	for (const auto &x : v) {
		if (!first)
			res += ", ";
		first = false;
		res += to_string(x);
	}
	res += "]";
	return res;
}

template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}

void dbg_out() { cout << endl; }
template <typename Head, typename... Tail> void dbg_out(Head H, Tail... T) {
	cout << ' ' << to_string(H);
	dbg_out(T...);
}

#ifdef DEBUG
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define dbg(...)
#endif

int N, Q;
vector<int> L, R;
vector<int> X;
vector<vector<int>> dp;

signed main() {
    ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
    cin >> N;
    L.resize(N), R.resize(N);
    vector<vector<vector<int>>> ibyLR(N, vector<vector<int>>(N));
    for (int i = 0; i < N; i++) {
        cin >> L[i] >> R[i], L[i]--, R[i]--;
        ibyLR[L[i]][R[i]].push_back(i);
    }
    cin >> Q;
    X.resize(Q);
    for (int i = 0; i < Q; i++) {
        cin >> X[i], X[i]--;
    }
    dp.assign(N, vector<int>(N, 1e18));
    dp[0][N-1] = 0;
    vector<vector<int>> optR(N+1, vector<int>(N+1, 1e18));
    for (int r = 0; r < N; r++) {
        for (int l = r; l >= 0; l--) {
            if (R[l] <= r) {
                optR[l][r] = min(optR[l+1][r], L[l]);
                //dbg(l, r, optR[l][r]);
            }
        }
    }
    vector<int> optLR(N, 1e18);
    for (int l = 0; l < N; l++) {
        vector<int> opt(N+1, -1);
        vector<int> optLRcumul(N+1, 1e18);
        for (int r = l; r < N; r++) {
            if (L[r] >= l) {
                opt[r+1] = max(opt[r], R[r]);
            }
        }
        for (int r = l; r < N; r++) {
            optLRcumul[r+1] = min(optLRcumul[r], optLR[r]);
        }
        for (int r = N-1; r >= l; r--) {
            dp[l][r] = min(dp[l][r], optLRcumul[r+1]);
            if (opt[r+1] != -1) {
                dp[l][r] = min(dp[l][r], 1+dp[l][opt[r+1]]);
            }
            if (optR[l][r] < 1e18) {
                dp[l][r] = min(dp[l][r], 1+dp[optR[l][r]][r]);
            }
            for (int i : ibyLR[l][r]) {
                optLR[i] = min(optLR[i], 1+dp[l][r]);
            }
        }
    }
    for (int i = 0; i < Q; i++) {
        cout << (dp[X[i]][X[i]] >= 1e18 ? -1 : dp[X[i]][X[i]]) << '\n';
    }
}

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Runtime error 433 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 3 ms 3796 KB Output is correct
13 Correct 3 ms 3796 KB Output is correct
14 Correct 2 ms 3540 KB Output is correct
15 Correct 3 ms 3796 KB Output is correct

Subtask #3
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 3 ms 3796 KB Output is correct
13 Correct 3 ms 3796 KB Output is correct
14 Correct 2 ms 3540 KB Output is correct
15 Correct 3 ms 3796 KB Output is correct
16 Correct 132 ms 214476 KB Output is correct
17 Correct 148 ms 242776 KB Output is correct
18 Incorrect 155 ms 245328 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 3 ms 3796 KB Output is correct
13 Correct 3 ms 3796 KB Output is correct
14 Correct 2 ms 3540 KB Output is correct
15 Correct 3 ms 3796 KB Output is correct
16 Correct 132 ms 214476 KB Output is correct
17 Correct 148 ms 242776 KB Output is correct
18 Incorrect 155 ms 245328 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #5
0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Runtime error 433 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -