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답안 #1017456

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1017456 2024-07-09T08:09:09 Z Gray Bomb (IZhO17_bomb) C++17
67 / 100
 251 ms 80464 KB 
#include <cassert>
#include <iostream>
#include <vector>
#define ll int
#define ln "\n"
#define ff first
#define ss second
#define ld long double
const ll INF = 1e9;
const ll MOD = 1e9+7;
using namespace std;

void solve(){
	ll n, m; cin >> n >> m;
	vector<vector<ll>> a(n+1, vector<ll>(m+1)), left(n+1, vector<ll>(m+2)), right(n+1, vector<ll>(m+2));
	for (ll i=1; i<=n; i++) 
		for (ll j=1; j<=m; j++){
			char x; cin >> x;
			a[i][j]=x-'0';
		}
	vector<ll> mxwid(n+1, INF);
	for (ll i=1; i<=n; i++) {
		for (ll j=1; j<=m; j++){
			left[i][j] = a[i][j]?left[i][j-1]+1:0;
		}
		for (ll j=m; j>=1; j--){
			right[i][j] = a[i][j]?right[i][j+1]+1:0;
			if (a[i][j])mxwid[1]=min(mxwid[1], right[i][j]+left[i][j]-1);
		}
	}
	ll mxh=INF;
	for (ll j=1; j<=m; j++){
		ll l=m, r=m, cc=0;
		for (ll i=1; i<=n; i++){
			if (a[i][j]){
				l=min(l, left[i][j]);
				r=min(r, right[i][j]);
				cc++;
				mxwid[cc]=min(mxwid[cc], l+r-1);
			}else{
				if (cc)mxh=min(mxh, cc);
				cc=0;
				l=m; r=m;
			}
		}
		if (cc) mxh=min(mxh, cc);
	}
	for (ll j=m; j>=1; j--){
		ll l=m, r=m, cc=0;
		for (ll i=1; i<=n; i++){
			if (a[i][j]){
				l=min(l, left[i][j]);
				r=min(r, right[i][j]);
				cc++;
				mxwid[cc]=min(mxwid[cc], l+r-1);
			}else{
				if (cc) mxh=min(mxh, cc);
				cc=0;
				l=m; r=m;
			}
		}
		if (cc) mxh=min(mxh, cc);
	}
	ll ans=0;
	for (ll i=1; i<=mxh; i++){
		// cout << i << ":" << mxwid[i] << ln;
		if (i>1) mxwid[i]=min(mxwid[i-1], mxwid[i]);
		ans=max(ans, mxwid[i]*i);
	}
	cout << ans << ln;
}
void setIO(){
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);
}
int main(){
	setIO();
	ll t=1;
	// cin >> t;
	while (t--) solve();
}

Subtask #1
67.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Incorrect 1 ms 348 KB Output isn't correct
10 Correct 0 ms 348 KB Output is correct
11 Incorrect 0 ms 348 KB Output isn't correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Incorrect 1 ms 344 KB Output isn't correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Incorrect 1 ms 348 KB Output isn't correct
24 Incorrect 1 ms 348 KB Output isn't correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 2 ms 1380 KB Output is correct
28 Correct 2 ms 1884 KB Output is correct
29 Correct 3 ms 1884 KB Output is correct
30 Incorrect 4 ms 2652 KB Output isn't correct
31 Incorrect 3 ms 2396 KB Output isn't correct
32 Incorrect 5 ms 2392 KB Output isn't correct
33 Correct 5 ms 3100 KB Output is correct
34 Correct 2 ms 1372 KB Output is correct
35 Incorrect 4 ms 3028 KB Output isn't correct
36 Correct 5 ms 2908 KB Output is correct
37 Incorrect 0 ms 348 KB Output isn't correct
38 Correct 214 ms 80040 KB Output is correct
39 Incorrect 0 ms 344 KB Output isn't correct
40 Correct 23 ms 10332 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 239 ms 80148 KB Output is correct
44 Correct 4 ms 2908 KB Output is correct
45 Incorrect 197 ms 80172 KB Output isn't correct
46 Correct 188 ms 80152 KB Output is correct
47 Incorrect 183 ms 80148 KB Output isn't correct
48 Correct 175 ms 80028 KB Output is correct
49 Correct 219 ms 80212 KB Output is correct
50 Correct 177 ms 80208 KB Output is correct
51 Correct 182 ms 80084 KB Output is correct
52 Correct 199 ms 80212 KB Output is correct
53 Correct 182 ms 80212 KB Output is correct
54 Correct 162 ms 80208 KB Output is correct
55 Correct 159 ms 80024 KB Output is correct
56 Correct 219 ms 80264 KB Output is correct
57 Correct 156 ms 80208 KB Output is correct
58 Correct 160 ms 80208 KB Output is correct
59 Correct 159 ms 80208 KB Output is correct
60 Correct 181 ms 80236 KB Output is correct
61 Correct 224 ms 80212 KB Output is correct
62 Correct 251 ms 80152 KB Output is correct
63 Correct 229 ms 80212 KB Output is correct
64 Correct 169 ms 80148 KB Output is correct
65 Correct 193 ms 80212 KB Output is correct
66 Correct 193 ms 80152 KB Output is correct
67 Correct 183 ms 80156 KB Output is correct
68 Correct 188 ms 80208 KB Output is correct
69 Correct 154 ms 80208 KB Output is correct
70 Incorrect 95 ms 51536 KB Output isn't correct
71 Incorrect 153 ms 80208 KB Output isn't correct
72 Correct 159 ms 80020 KB Output is correct
73 Incorrect 160 ms 80208 KB Output isn't correct
74 Incorrect 176 ms 80208 KB Output isn't correct
75 Incorrect 157 ms 80264 KB Output isn't correct
76 Correct 155 ms 80212 KB Output is correct
77 Correct 160 ms 80208 KB Output is correct
78 Correct 155 ms 80212 KB Output is correct
79 Incorrect 136 ms 80212 KB Output isn't correct
80 Incorrect 145 ms 80020 KB Output isn't correct
81 Incorrect 172 ms 80148 KB Output isn't correct
82 Correct 159 ms 80212 KB Output is correct
83 Incorrect 168 ms 80028 KB Output isn't correct
84 Incorrect 133 ms 80208 KB Output isn't correct
85 Incorrect 160 ms 80024 KB Output isn't correct
86 Incorrect 217 ms 80464 KB Output isn't correct
87 Correct 160 ms 80028 KB Output is correct
88 Incorrect 158 ms 80108 KB Output isn't correct
89 Incorrect 179 ms 80036 KB Output isn't correct
90 Incorrect 126 ms 51564 KB Output isn't correct
91 Correct 162 ms 80208 KB Output is correct
92 Correct 176 ms 80204 KB Output is correct
93 Correct 210 ms 80208 KB Output is correct
94 Incorrect 179 ms 80212 KB Output isn't correct
95 Incorrect 170 ms 80212 KB Output isn't correct
96 Incorrect 168 ms 80264 KB Output isn't correct
97 Correct 210 ms 80212 KB Output is correct
98 Correct 155 ms 80036 KB Output is correct
99 Incorrect 177 ms 80216 KB Output isn't correct
100 Incorrect 206 ms 80152 KB Output isn't correct