oj.uz

Submission #97288

# Submission time Handle Problem Language Result Execution time Memory
97288 2019-02-14T19:02:54 Z YuzuChan Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 294 ms 79640 KB 
#define _CRT_SECURE_NO_WARNINGS
# include <cstdio>
# include <iostream>
# include <cmath>
# include <algorithm>
# include <stdio.h>
# include <cstdint>
# include <cstring>
# include <string>
# include <cstdlib>
# include <vector>
# include <bitset>
# include <map>
# include <queue>
# include <ctime>
# include <stack>
# include <set>
# include <list>
# include <random>
# include <deque>
# include <functional>
# include <iomanip>
# include <sstream>
# include <fstream>
# include <complex>
# include <numeric>
# include <immintrin.h>
# include <cassert>
# include <array>
# include <tuple>
using namespace std;

/** Interface */

inline int readChar();
template <class T = int> inline T readInt();
template <class T> inline void writeInt(T x, char end = 0);
inline void writeChar(int x);
inline void writeWord(const char *s);

/** Read */

static const int buf_size = 4096;

inline int getChar() {
	static char buf[buf_size];
	static int len = 0, pos = 0;
	if (pos == len)
		pos = 0, len = fread(buf, 1, buf_size, stdin);
	if (pos == len)
		return -1;
	return buf[pos++];
}

inline int readChar() {
	int c = getChar();
	while (c <= 32)
		c = getChar();
	return c;
}

template <class T>
inline T readInt() {
	int s = 1, c = readChar();
	T x = 0;
	if (c == '-')
		s = -1, c = getChar();
	while ('0' <= c && c <= '9')
		x = x * 10 + c - '0', c = getChar();
	return s == 1 ? x : -x;
}

/** Write */

static int write_pos = 0;
static char write_buf[buf_size];

inline void writeChar(int x) {
	if (write_pos == buf_size)
		fwrite(write_buf, 1, buf_size, stdout), write_pos = 0;
	write_buf[write_pos++] = x;
}

template <class T>
inline void writeInt(T x, char end) {
	if (x < 0)
		writeChar('-'), x = -x;

	char s[24];
	int n = 0;
	while (x || !n)
		s[n++] = '0' + x % 10, x /= 10;
	while (n--)
		writeChar(s[n]);
	if (end)
		writeChar(end);
}

inline void writeWord(const char *s) {
	while (*s)
		writeChar(*s++);
}

struct Flusher {
	~Flusher() {
		if (write_pos)
			fwrite(write_buf, 1, write_pos, stdout), write_pos = 0;
	}
} flusher;

inline void readWord(char *s) {
	int c = readChar();
	while (c > 32)
		*s++ = c, c = getChar();
	*s = 0;
}

inline void writeDouble(double x, int output_len) {
	if (x < 0)
		writeChar('-'), x = -x;
	int t = (int)x;
	writeInt(t), x -= t;
	writeChar('.');
	for (int i = output_len - 1; i > 0; i--) {
		x *= 10;
		t = min(9, (int)x);
		writeChar('0' + t), x -= t;
	}
	x *= 10;
	t = min(9, (int)(x + 0.5));
	writeChar('0' + t);
}


// Begin fast allocation
//const int max_mem = 2e8;
//int mpos = 0;
//char mem[max_mem];
//inline void * operator new ( size_t n ) {
//	mpos += n;
//	return (void *)(mem + mpos - n);
//}
//inline void operator delete ( void * ) noexcept { } // must have!
// end fast allocation


//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("O3")


//#define __GLIBCXX_DEBUG

#define shandom_ruffle random_shuffle
#define sz(a) (int)((a).size())
#define all(a) a.begin(), a.end()
#define pb push_back
#define fi first
#define se second
#define mp make_pair
#define x() real()
#define y() imag()
//#define int ll
//#define NAME "improvements"

using ll = long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using vi = vector<int>;
using vll = vector<ll>;
using ull = unsigned long long;

using pnt = complex<ld>;

istream& operator >> (istream& in, pnt& p) {
	ld a, b;
	in >> a >> b;
	p = { a, b };
	return in;
}

ld crs(pnt a, pnt b) {
	return a.x() * b.y() - a.y() * b.x();
}

ld dot(pnt a, pnt b) {
	return a.x() * b.x() + a.y() * b.y();
}

//const int M = 998244353;
const int mod = (int)1e9 + 7;
const int inf = (int)1e9 + 100;
const ll inf64 = (ll)1e18L;
const int di[] = { 0, 1,-1, 0 };
const int dj[] = { 1, 0, 0,-1 };
const int SQ = 1000;
const int LG = 19;
const int nax = (int)1e5 + 100; // угадайка

int n, m;
char a[3000][3000];
int ci[3000][3000];
int co[3000][3000];

int main() {
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout.precision(10); cout << fixed;
	//freopen("in.txt", "r", stdin);
	cin >> n >> m;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			cin >> a[i][j];
		}
	}
	for (int i = n - 1; i >= 0; i--) {
		for (int j = m - 1; j >= 0; j--) {
			co[i][j] = (a[i][j] == 'O') + (j < m - 1 ? co[i][j + 1] : 0);
			ci[i][j] = (a[i][j] == 'I') + (i < n - 1 ? ci[i + 1][j] : 0);
		}
	}
	ll ans = 0;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			if (a[i][j] == 'J') {
				ans += co[i][j] * ci[i][j];
			}
		}
	}
	cout << ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 3 ms 1536 KB Output is correct
6 Correct 3 ms 1536 KB Output is correct
7 Correct 3 ms 1408 KB Output is correct
8 Correct 3 ms 1536 KB Output is correct
9 Correct 3 ms 1536 KB Output is correct
10 Correct 3 ms 1408 KB Output is correct
11 Correct 4 ms 1536 KB Output is correct
12 Correct 3 ms 1536 KB Output is correct
13 Correct 3 ms 1408 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 3 ms 1536 KB Output is correct
6 Correct 3 ms 1536 KB Output is correct
7 Correct 3 ms 1408 KB Output is correct
8 Correct 3 ms 1536 KB Output is correct
9 Correct 3 ms 1536 KB Output is correct
10 Correct 3 ms 1408 KB Output is correct
11 Correct 4 ms 1536 KB Output is correct
12 Correct 3 ms 1536 KB Output is correct
13 Correct 3 ms 1408 KB Output is correct
14 Correct 10 ms 7296 KB Output is correct
15 Correct 5 ms 4992 KB Output is correct
16 Correct 8 ms 4224 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 12 ms 7808 KB Output is correct
19 Correct 10 ms 7680 KB Output is correct
20 Correct 10 ms 7680 KB Output is correct
21 Correct 13 ms 7808 KB Output is correct
22 Correct 10 ms 7680 KB Output is correct
23 Correct 10 ms 7680 KB Output is correct
24 Correct 12 ms 7808 KB Output is correct
25 Correct 11 ms 7680 KB Output is correct
26 Correct 9 ms 7596 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 3 ms 1536 KB Output is correct
6 Correct 3 ms 1536 KB Output is correct
7 Correct 3 ms 1408 KB Output is correct
8 Correct 3 ms 1536 KB Output is correct
9 Correct 3 ms 1536 KB Output is correct
10 Correct 3 ms 1408 KB Output is correct
11 Correct 4 ms 1536 KB Output is correct
12 Correct 3 ms 1536 KB Output is correct
13 Correct 3 ms 1408 KB Output is correct
14 Correct 10 ms 7296 KB Output is correct
15 Correct 5 ms 4992 KB Output is correct
16 Correct 8 ms 4224 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 12 ms 7808 KB Output is correct
19 Correct 10 ms 7680 KB Output is correct
20 Correct 10 ms 7680 KB Output is correct
21 Correct 13 ms 7808 KB Output is correct
22 Correct 10 ms 7680 KB Output is correct
23 Correct 10 ms 7680 KB Output is correct
24 Correct 12 ms 7808 KB Output is correct
25 Correct 11 ms 7680 KB Output is correct
26 Correct 9 ms 7596 KB Output is correct
27 Correct 190 ms 79640 KB Output is correct
28 Correct 20 ms 25984 KB Output is correct
29 Correct 16 ms 7168 KB Output is correct
30 Correct 3 ms 560 KB Output is correct
31 Correct 193 ms 66484 KB Output is correct
32 Correct 188 ms 79608 KB Output is correct
33 Correct 209 ms 79352 KB Output is correct
34 Correct 197 ms 76992 KB Output is correct
35 Correct 225 ms 79608 KB Output is correct
36 Correct 236 ms 79324 KB Output is correct
37 Correct 294 ms 79596 KB Output is correct
38 Correct 175 ms 66424 KB Output is correct
39 Correct 143 ms 66280 KB Output is correct