oj.uz

Submission #87082

# Submission time Handle Problem Language Result Execution time Memory
87082 2018-11-29T12:06:37 Z Just_Solve_The_Problem Energetic turtle (IZhO11_turtle) C++11
65 / 100
 1520 ms 5276 KB 
#include <bits/stdc++.h>

#define ll long long

using namespace std;

const int N = (int)3e5 + 7;

int mod;
int cnt[N], lp[N];
//map < pair < int, int >, int > mp;

int mult(int a, int b) {
	return (a * 1LL * b) % mod;
}

int add(int a, int b) {
	return (a + b) % mod;
}

void precalc() {
	for (int i = 2; i < N; i++) {
		if (lp[i]) continue;
		for (int j = i; j < N; j += i) {
			if (!lp[j]) {
				lp[j] = i;
			}
		}
 	}
}

void add1(int x, int val) {
	while (x > 1) {
		cnt[lp[x]] += val;
		x /= lp[x];
	}
}

int calc(int n, int k) {
	//if (mp.count({n, k})) {
		//return mp[{n, k}];
	//}
	int res = 1;
	for (int i = 2; i <= n; i++) {
		add1(i, 1);
	}
	for (int i = 2; i <= k; i++) {
		add1(i, -1);
	}
	for (int i = 2; i <= n - k; i++) {
		add1(i, -1);
	}
	for (int i = 2; i <= n; i++) {
		while (cnt[i] > 0) {
			res = mult(res, i);
			cnt[i]--;
		}
	}
	return res;
	//return mp[{n, k}] = res;
}

int n, m, k, t;
int dp[33][33];
int dist[33][33];
int dist1[33][33];
pair < int, int > ar[33];

main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	memset(dp, -1, sizeof dp);
	precalc();
	cin >> n >> m >> k >> t >> mod;
	n++; m++;
	for (int i = 1; i <= k; i++) {
		cin >> ar[i].first >> ar[i].second;
		ar[i].first++;
		ar[i].second++;
	}
	k++;
	ar[k] = {n, m};
	sort(ar + 1, ar + k + 1);
	for (int i = 1; i <= k; i++) {
		dp[1][i] = calc(ar[i].first + ar[i].second - 2, ar[i].first - 1);
	}
	int ans = 0;
	for (int i = 1; i <= k; i++) {
		for (int j = 1; j < i; j++) {
			// ar[i].first <= ar[j].first
			if (ar[j].second <= ar[i].second) {
				dp[1][i] = add(dp[1][i], mod - mult(dp[1][j], calc(abs(ar[j].second - ar[i].second) + abs(ar[i].first - ar[j].first), abs(ar[i].first - ar[j].first))));
			} 
			int len1 = abs(ar[i].first - ar[j].first);
			int len2 = abs(ar[i].second - ar[j].second);
			dist[i][j] = dist[j][i] = calc(len1 + len2, len1);
			dist1[i][j] = dist1[j][i] = dist[i][j];
		}
	}
	for (int i = 1; i <= k; i++) {
		for (int j = 1; j < i; j++) {
			for (int l = j + 1; l < i; l++) {
				if (ar[j].second <= ar[l].second && ar[l].second <= ar[i].second) {
					dist1[i][j] = dist1[j][i] = add(dist1[i][j], mod - mult(dist1[i][l], dist1[l][j]));
				}
			}
		}
	}
	for (int i = 2; i <= t + 1; i++) {
		for (int j = 1; j <= k; j++) {
			dp[i][j] = dp[1][j];
			for (int l = 1; l < j; l++) {
				if (ar[l].second <= ar[j].second) {
					if (dp[i - 1][l] == -1) continue;
					dp[i][j] = add(dp[i][j], mult(dp[i - 1][l], dist1[j][l]));
				}
			}
		}
	}
	cout << dp[t + 1][k] << endl;
}
/*
5 5 3 0 1000000000
2 2
2 3
3 3
*/

Compilation message

turtle.cpp:69:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
turtle.cpp: In function 'int main()':
turtle.cpp:88:6: warning: unused variable 'ans' [-Wunused-variable]
  int ans = 0;
      ^~~

Subtask #1
65.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1528 KB Output is correct
2 Correct 6 ms 1528 KB Output is correct
3 Correct 6 ms 1452 KB Output is correct
4 Correct 6 ms 1528 KB Output is correct
5 Correct 8 ms 1556 KB Output is correct
6 Correct 10 ms 1528 KB Output is correct
7 Correct 13 ms 1660 KB Output is correct
8 Correct 13 ms 1528 KB Output is correct
9 Correct 87 ms 1604 KB Output is correct
10 Correct 199 ms 1656 KB Output is correct
11 Correct 1072 ms 2352 KB Output is correct
12 Runtime error 86 ms 5256 KB Execution killed with signal 8 (could be triggered by violating memory limits)
13 Runtime error 69 ms 5244 KB Execution killed with signal 8 (could be triggered by violating memory limits)
14 Correct 1266 ms 2348 KB Output is correct
15 Correct 1520 ms 2344 KB Output is correct
16 Runtime error 103 ms 5276 KB Execution killed with signal 8 (could be triggered by violating memory limits)
17 Runtime error 95 ms 5220 KB Execution killed with signal 8 (could be triggered by violating memory limits)
18 Runtime error 95 ms 5240 KB Execution killed with signal 8 (could be triggered by violating memory limits)
19 Runtime error 100 ms 5240 KB Execution killed with signal 8 (could be triggered by violating memory limits)
20 Runtime error 93 ms 5172 KB Execution killed with signal 8 (could be triggered by violating memory limits)