oj.uz

Submission #343670

# Submission time Handle Problem Language Result Execution time Memory
343670 2021-01-04T11:13:02 Z Galebickosikasa Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 434 ms 159980 KB 
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx")
// #pragma comment(linker, "/stack:200000000"]
 
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <unordered_set>
#include <unordered_map>
#include <set>
#include <map>
#include <queue>
#include <deque>
#include <bitset>
#include <stack>
#include <random>
#include <fstream>
#include <sstream>
#include <chrono>

#define fi first
#define se second
#define pb push_back
#define ll long long
#define ld long double
#define hm unordered_map 
#define pii pair<int, int>
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define cinv(v) for (auto& x: v) cin >> x
#define fr(i, n) for (int i = 0; i < n; ++i)
#define fl(i, l, n) for (int i = l; i < n; ++i)

#define int ll

template <typename T1, typename T2> inline bool chkmin(T1 &x, const T2 &y) {if (x > y) {x = y; return 1;} return 0;}
template <typename T1, typename T2> inline bool chkmax(T1 &x, const T2 &y) {if (x < y) {x = y; return 1;} return 0;}

using namespace std;

#ifdef LOCAL
	#define dbg(x) cerr << #x << " : " << x << '\n'
	const int maxn = 20;
#else 
	#define dbg(x)
	const int maxn = 3000 + 20;
#endif

//tg: @galebickosikasa
 
ostream& operator << (ostream& out, const pii& v) {
	out << v.fi << ", " << v.se;
	return out;
}

template<typename T> ostream& operator << (ostream& out, const vector<T>& v) {
    for (auto& x: v) out << x << " ";
    return out;
}

istream& operator >> (istream& in, pii& a) {
	in >> a.fi >> a.se;
	return in;
}

const ll inf = (ll) 2e9;
const ld pi = asin (1) * 2;
const ld eps = 1e-8;
const ll mod = (ll)1e9 + 7;
const ll ns = 97;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

int dp1[maxn][maxn], dp2[maxn][maxn];
char goo[maxn][maxn];

signed main () {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);
	int n, m;
	cin >> n >> m;
	fr (i, n) fr (j, m) cin >> goo[i][j];
	for (int i = 0; i < n; ++i) {
		for (int j = m - 1; j >= 0; --j) {
			dp1[i][j] = dp1[i][j + 1] + (goo[i][j] == 'O');
		}
	}
	for (int j = 0; j < m; ++j) {
		for (int i = n - 1; i >= 0; --i) {
			dp2[i][j] = dp2[i + 1][j] + (goo[i][j] == 'I');
		}
	}
	int ans = 0;
	for (int i = 0; i < n; ++i) {
		for (int j = 0; j < m; ++j) {
			ans += dp1[i][j] * dp2[i][j] * (goo[i][j] == 'J');
			if (goo[i][j] == 'J') {
				dbg (i);
				dbg (j);
				dbg (dp1[i][j]);
				dbg (dp2[i][j]);
			}
		}
	}
	cout << ans << '\n';
	






}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 1644 KB Output is correct
6 Correct 1 ms 1516 KB Output is correct
7 Correct 1 ms 1516 KB Output is correct
8 Correct 2 ms 1644 KB Output is correct
9 Correct 2 ms 1516 KB Output is correct
10 Correct 1 ms 1516 KB Output is correct
11 Correct 1 ms 1644 KB Output is correct
12 Correct 1 ms 1516 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 1644 KB Output is correct
6 Correct 1 ms 1516 KB Output is correct
7 Correct 1 ms 1516 KB Output is correct
8 Correct 2 ms 1644 KB Output is correct
9 Correct 2 ms 1516 KB Output is correct
10 Correct 1 ms 1516 KB Output is correct
11 Correct 1 ms 1644 KB Output is correct
12 Correct 1 ms 1516 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 10 ms 9068 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 6 ms 5356 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 11 ms 9964 KB Output is correct
19 Correct 11 ms 9836 KB Output is correct
20 Correct 11 ms 9836 KB Output is correct
21 Correct 12 ms 9964 KB Output is correct
22 Correct 11 ms 9836 KB Output is correct
23 Correct 12 ms 9836 KB Output is correct
24 Correct 12 ms 9964 KB Output is correct
25 Correct 15 ms 9836 KB Output is correct
26 Correct 14 ms 9836 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 1644 KB Output is correct
6 Correct 1 ms 1516 KB Output is correct
7 Correct 1 ms 1516 KB Output is correct
8 Correct 2 ms 1644 KB Output is correct
9 Correct 2 ms 1516 KB Output is correct
10 Correct 1 ms 1516 KB Output is correct
11 Correct 1 ms 1644 KB Output is correct
12 Correct 1 ms 1516 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 10 ms 9068 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 6 ms 5356 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 11 ms 9964 KB Output is correct
19 Correct 11 ms 9836 KB Output is correct
20 Correct 11 ms 9836 KB Output is correct
21 Correct 12 ms 9964 KB Output is correct
22 Correct 11 ms 9836 KB Output is correct
23 Correct 12 ms 9836 KB Output is correct
24 Correct 12 ms 9964 KB Output is correct
25 Correct 15 ms 9836 KB Output is correct
26 Correct 14 ms 9836 KB Output is correct
27 Correct 418 ms 159724 KB Output is correct
28 Correct 18 ms 26348 KB Output is correct
29 Correct 24 ms 13932 KB Output is correct
30 Correct 1 ms 876 KB Output is correct
31 Correct 312 ms 131692 KB Output is correct
32 Correct 434 ms 159852 KB Output is correct
33 Correct 431 ms 159340 KB Output is correct
34 Correct 357 ms 152556 KB Output is correct
35 Correct 434 ms 159980 KB Output is correct
36 Correct 433 ms 159340 KB Output is correct
37 Correct 431 ms 159980 KB Output is correct
38 Correct 311 ms 130796 KB Output is correct
39 Correct 306 ms 131180 KB Output is correct