Submission #913555

#	Time	Username	Problem	Language	Result	Execution time	Memory
913555		ashkan_ahmadi_koni	Bitaro the Brave (JOI19_ho_t1)	C++17	20 / 100	1037 ms	5824 KiB

joi2019_ho_t1

/*               In The Name Of God               */
#include                              <bits/stdc++.h>
using                                  namespace std;
#define int                                 long long
#define sw                            sync_with_stdio
#pragma GCC       optimize("Ofast, unroll-loops, O3")
#define fast       ios::sw(0),cin.tie(0),cout.tie(0);
const int   N = 3e3 + 3, M = 1e9 + 7, inf = 1e18 + 8; 

int h, w, ans;
char a[N][N];

vector <pair<int, int>> ii, jj, oo;

signed main() {
    fast; cin >> h >> w;
    
     for (int i = 1; i <= h; ++i)
    	for (int j = 1; j <= w; ++j) {
    		cin >> a[i][j];
    		
    		if (a[i][j] == 'I')
    			ii.push_back({i, j});
    		else if (a[i][j] == 'J')
    			jj.push_back({i, j});
    		else
    			oo.push_back({i, j});
    	}
    	
	for (auto[i, j] : jj) 
		for (auto [x, y] : oo) 
			if (x == i && j < y) 
				for (auto [a, b] : ii)
					if (b == j && i < a) {
						ans++;
						// cout << i << ' ' << j << ' ' << a << ' ' << y << '\n';
					}
    					
    cout << ans << '\n';
    
}

/* 

    .---.    .    .--.         
    |        |    |   ) o      
    |--- .--.|--. |--:  .  ---.
    |    `--.|  | |   ) |   .' 
    '---'`--''  `-'--'-' `-'--- 

*/

Compilation message (stderr)

joi2019_ho_t1.cpp:6:53: warning: bad option '-f unroll-loops' to pragma 'optimize' [-Wpragmas]
    6 | #pragma GCC       optimize("Ofast, unroll-loops, O3")
      |                                                     ^
joi2019_ho_t1.cpp:6:53: warning: bad option '-f O3' to pragma 'optimize' [-Wpragmas]
joi2019_ho_t1.cpp:15:13: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]
   15 | signed main() {
      |             ^
joi2019_ho_t1.cpp:15:13: warning: bad option '-f O3' to attribute 'optimize' [-Wattributes]
joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:18:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   18 |      for (int i = 1; i <= h; ++i)
      |      ^~~
joi2019_ho_t1.cpp:30:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   30 |  for (auto[i, j] : jj)
      |  ^~~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50