oj.uz

Submission #878865

# Submission time Handle Problem Language Result Execution time Memory
878865 2023-11-25T11:09:05 Z Gray Bomb (IZhO17_bomb) C++17
0 / 100
 731 ms 95448 KB 
// Source: https://usaco.guide/general/io

#include <bits/stdc++.h>
#include <cassert>
#define ll long long
#define ln "\n"
#define ff first
#define ss second
#define ld long double
const ll INF = 2e18;
const ll MOD = 1e9+7;
using namespace std;

void solve(){
	ll n, m; cin >> n >> m;
	vector<vector<char>> grid(n, vector<char>(m));
	for (ll i=0; i<n; i++){
		for (ll j=0; j<m; j++) cin >> grid[i][j];
	}
	vector<vector<ll>> dist(n, vector<ll>(m, 0));
	for (ll i=0; i<n; i++){
		ll loj = -1;
		for (ll j=0; j<m; j++){
			if (grid[i][j] == '0'){
				loj = j;
			}
			dist[i][j] = j-loj;
		}
	}
	ll mnw = m, mnh = n;
	for (ll j=0; j<m; j++){
		vector<ll> tpdi(n);
		stack<ll> mni;
		for (ll i=0; i<n; i++){
			while (!mni.empty() and dist[mni.top()][j]>=dist[i][j]) mni.pop();
			if (!mni.empty()) tpdi[i] = i-mni.top();
			else tpdi[i] = i+1;
			mni.push(i);
		}
		mni = stack<ll>();
		for (ll i = n-1; i>=0; i--){
			ll tdp = 0;
			while (!mni.empty() and dist[mni.top()][j]>=dist[i][j]) mni.pop();
			if (!mni.empty()){
				// cout << mni.top() << ln;
				tdp = mni.top()-i;
			}else tdp = n-i;
			mni.push(i);
			if (grid[i][j]=='0') continue;
			mnw = min(mnw, dist[i][j]);
			mnh = min(mnh, tdp+tpdi[i]-1);
			// cout << i << " " << j << ": " << dist[i][j] << " ; " << tdp << " " << tpdi[i] << ln;
		}
	}
	cout << mnw*mnh << ln;
}
void setIO(){
	// ios_base::sync_with_stdio(false);
	// cin.tie(nullptr);
	// cout.tie(nullptr);
    freopen("bomb.in", "r", stdin);
    freopen("bomb.out", "w", stdout);
}
int main(){
	setIO();
	ll t=1;
    // cin >> t;
    while (t--) solve();
}

Compilation message

bomb.cpp: In function 'void setIO()':
bomb.cpp:61:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |     freopen("bomb.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bomb.cpp:62:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |     freopen("bomb.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 517 ms 95332 KB Output isn't correct
2 Incorrect 512 ms 95360 KB Output isn't correct
3 Incorrect 519 ms 95376 KB Output isn't correct
4 Incorrect 536 ms 95360 KB Output isn't correct
5 Incorrect 500 ms 95284 KB Output isn't correct
6 Incorrect 519 ms 95360 KB Output isn't correct
7 Incorrect 524 ms 95356 KB Output isn't correct
8 Incorrect 502 ms 95364 KB Output isn't correct
9 Incorrect 519 ms 95364 KB Output isn't correct
10 Incorrect 496 ms 95360 KB Output isn't correct
11 Incorrect 557 ms 95356 KB Output isn't correct
12 Incorrect 497 ms 95300 KB Output isn't correct
13 Incorrect 524 ms 95380 KB Output isn't correct
14 Incorrect 555 ms 95336 KB Output isn't correct
15 Incorrect 510 ms 95356 KB Output isn't correct
16 Incorrect 507 ms 95376 KB Output isn't correct
17 Incorrect 492 ms 95360 KB Output isn't correct
18 Incorrect 509 ms 95376 KB Output isn't correct
19 Incorrect 523 ms 95360 KB Output isn't correct
20 Incorrect 539 ms 95360 KB Output isn't correct
21 Incorrect 510 ms 95372 KB Output isn't correct
22 Incorrect 497 ms 95352 KB Output isn't correct
23 Incorrect 527 ms 95360 KB Output isn't correct
24 Incorrect 506 ms 95360 KB Output isn't correct
25 Incorrect 532 ms 95356 KB Output isn't correct
26 Incorrect 540 ms 95372 KB Output isn't correct
27 Incorrect 493 ms 95356 KB Output isn't correct
28 Incorrect 509 ms 95360 KB Output isn't correct
29 Incorrect 496 ms 95364 KB Output isn't correct
30 Incorrect 493 ms 95360 KB Output isn't correct
31 Incorrect 505 ms 95364 KB Output isn't correct
32 Incorrect 494 ms 95380 KB Output isn't correct
33 Incorrect 506 ms 95356 KB Output isn't correct
34 Incorrect 500 ms 95360 KB Output isn't correct
35 Incorrect 499 ms 95356 KB Output isn't correct
36 Incorrect 552 ms 95376 KB Output isn't correct
37 Incorrect 506 ms 95432 KB Output isn't correct
38 Incorrect 513 ms 95360 KB Output isn't correct
39 Incorrect 504 ms 95296 KB Output isn't correct
40 Incorrect 515 ms 95388 KB Output isn't correct
41 Incorrect 527 ms 95372 KB Output isn't correct
42 Incorrect 553 ms 95276 KB Output isn't correct
43 Incorrect 546 ms 95360 KB Output isn't correct
44 Incorrect 538 ms 95376 KB Output isn't correct
45 Incorrect 520 ms 95364 KB Output isn't correct
46 Incorrect 530 ms 95276 KB Output isn't correct
47 Incorrect 532 ms 95364 KB Output isn't correct
48 Incorrect 512 ms 95372 KB Output isn't correct
49 Incorrect 537 ms 95364 KB Output isn't correct
50 Incorrect 552 ms 95384 KB Output isn't correct
51 Incorrect 524 ms 95380 KB Output isn't correct
52 Incorrect 540 ms 95356 KB Output isn't correct
53 Incorrect 520 ms 95320 KB Output isn't correct
54 Incorrect 731 ms 95360 KB Output isn't correct
55 Incorrect 600 ms 95376 KB Output isn't correct
56 Incorrect 506 ms 95356 KB Output isn't correct
57 Incorrect 513 ms 95352 KB Output isn't correct
58 Incorrect 527 ms 95424 KB Output isn't correct
59 Incorrect 517 ms 95372 KB Output isn't correct
60 Incorrect 500 ms 95356 KB Output isn't correct
61 Incorrect 509 ms 95356 KB Output isn't correct
62 Incorrect 520 ms 95380 KB Output isn't correct
63 Incorrect 496 ms 95380 KB Output isn't correct
64 Incorrect 540 ms 95356 KB Output isn't correct
65 Incorrect 521 ms 95356 KB Output isn't correct
66 Incorrect 507 ms 95360 KB Output isn't correct
67 Incorrect 537 ms 95360 KB Output isn't correct
68 Incorrect 585 ms 95372 KB Output isn't correct
69 Incorrect 515 ms 95272 KB Output isn't correct
70 Incorrect 504 ms 95356 KB Output isn't correct
71 Incorrect 534 ms 95360 KB Output isn't correct
72 Incorrect 524 ms 95360 KB Output isn't correct
73 Incorrect 512 ms 95428 KB Output isn't correct
74 Incorrect 509 ms 95372 KB Output isn't correct
75 Incorrect 497 ms 95356 KB Output isn't correct
76 Incorrect 496 ms 95360 KB Output isn't correct
77 Incorrect 518 ms 95448 KB Output isn't correct
78 Incorrect 537 ms 95372 KB Output isn't correct
79 Incorrect 511 ms 95396 KB Output isn't correct
80 Incorrect 503 ms 95356 KB Output isn't correct
81 Incorrect 539 ms 95372 KB Output isn't correct
82 Incorrect 501 ms 95356 KB Output isn't correct
83 Incorrect 510 ms 95368 KB Output isn't correct
84 Incorrect 495 ms 95360 KB Output isn't correct
85 Incorrect 507 ms 95376 KB Output isn't correct
86 Incorrect 559 ms 95356 KB Output isn't correct
87 Incorrect 492 ms 95360 KB Output isn't correct
88 Incorrect 533 ms 95360 KB Output isn't correct
89 Incorrect 583 ms 95356 KB Output isn't correct
90 Incorrect 502 ms 95360 KB Output isn't correct
91 Incorrect 504 ms 95244 KB Output isn't correct
92 Incorrect 520 ms 95372 KB Output isn't correct
93 Incorrect 512 ms 95364 KB Output isn't correct
94 Incorrect 545 ms 95364 KB Output isn't correct
95 Incorrect 536 ms 95328 KB Output isn't correct
96 Incorrect 519 ms 95360 KB Output isn't correct
97 Incorrect 545 ms 95372 KB Output isn't correct
98 Incorrect 516 ms 95356 KB Output isn't correct
99 Incorrect 522 ms 95448 KB Output isn't correct
100 Incorrect 512 ms 95360 KB Output isn't correct