| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1114047 |
2024-11-18T07:01:20 Z |
adiyer |
Bomb (IZhO17_bomb) |
C++17 |
|
442 ms |
99484 KB |
// 194.67
#pragma optimize ("g",on)
#pragma GCC optimize("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
// #pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
#include <bits/stdc++.h>
#define file(s) freopen(s".in", "r", stdin); freopen(s".out", "w", stdout);
#define adiyer(); ios_base::sync_with_stdio(0); cin.tie(0);
#define bitcount(n) __builtin_popcountll(n)
#define puts(x) cout << (x ? "YES\n" : "NO\n");
#define ent (i == n ? '\n' : ' ')
#define all(x) x.begin(), x.end()
#define md ((l + r) >> 1)
#define rv(v) ((v << 1) | 1)
#define lv(v) (v << 1)
#define rs(v) rv(v), md + 1, r
#define ls(v) lv(v), l, md
#define len(s) (int) s.size()
#define yes { cout << "YES\n"; return; }
#define no { cout << "NO\n"; return; }
#define skip continue
#define pb push_back
#define S second
#define F first
#define ne !=
// #define int long long
using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector < ll > vll;
typedef pair < ll, ll > pll;
typedef vector < pair < ll, ll > > vpll;
const int dx[8] = {-1, 0, 1, 0, 1, 1, -1, -1};
const int dy[8] = {0, 1, 0, -1, -1, 1, -1, 1};
const int N = 2.5e3 + 5;
const int K = 1e5 + 3;
const int MAX = 1e6;
const int mod = 998244353;
const long long inf = 2e9;
const ll o = 1;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
ll n, m, w, h;
ll a[N][N], pref[N][N];
int st[460][460];
char c;
ll get(ll l1, ll r1, ll l2, ll r2){
return pref[l2][r2] - pref[l1 - 1][r2] - pref[l2][r1 - 1] + pref[l1 - 1][r1 - 1];
}
bool f(ll W, ll H){
memset(st, 0, sizeof(st));
for(ll i = 1; i <= n; i++){
for(ll j = 1; j <= m; j++){
if(get(i, j, i + H - 1, j + W - 1) >= H * W){
st[i][j]++;
st[i + H][j]--;
st[i][j + W]--;
st[i + H][j + W]++;
}
st[i][j] += st[i - 1][j] + st[i][j - 1] - st[i - 1][j - 1];
if(a[i][j] && !st[i][j]) return 0;
}
}
return 1;
}
void output(){
cin >> n >> m, w = m, h = n;
for(ll i = 1; i <= n; i++)
for(ll j = 1; j <= m; j++)
cin >> c, a[i][j] = c - '0';
for(ll i = 1; i <= n; i++)
for(ll j = 1; j <= m; j++)
pref[i][j] = pref[i - 1][j] + pref[i][j - 1] - pref[i - 1][j - 1] + a[i][j];
if(n <= 450 && m <= 450){
ll ans = 0;
for(ll x = 1; x <= m; x++){
ll l = 0, r = n + 1;
while(r - l > 1){
if(f(x, md)) l = md;
else r = md;
}
ans = max(ans, x * l);
}
cout << ans;
return;
}
for(ll i = 1; i <= n; i++){
for(ll j = 1; j <= m; j++){
if(!a[i][j - 1] && a[i][j]){
ll l = j, r = m + 1;
while(r - l > 1){
if(get(i, j, i, md) == md - j + 1) l = md;
else r = md;
}
w = min(w, l - j + 1);
// cout << i << ' ' << j << ' ' << l << '\n';
}
if(!a[i - 1][j] && a[i][j]){
ll l = i, r = n + 1;
while(r - l > 1){
if(get(i, j, md, j) == md - i + 1) l = md;
else r = md;
}
h = min(h, l - i + 1);
// cout << i << ' ' << j << ' ' << l << '\n';
}
}
}
cout << h * w;
}
const bool cases = 0;
signed main(){
// file("disrupt");
adiyer();
int tt = 1;
if(cases) cin >> tt;
for(int i = 1; i <= tt; i++){
// cout << "Case " << i << ":\n";
output();
// slow();
// stress();
}
}
Compilation message
bomb.cpp:2: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
2 | #pragma optimize ("g",on)
|
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
3152 KB |
Output is correct |
| 2 |
Correct |
2 ms |
3576 KB |
Output is correct |
| 3 |
Correct |
14 ms |
36800 KB |
Output is correct |
| 4 |
Correct |
13 ms |
33616 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
3152 KB |
Output is correct |
| 8 |
Correct |
3 ms |
3420 KB |
Output is correct |
| 9 |
Correct |
3 ms |
3408 KB |
Output is correct |
| 10 |
Correct |
2 ms |
3408 KB |
Output is correct |
| 11 |
Correct |
3 ms |
3408 KB |
Output is correct |
| 12 |
Correct |
3 ms |
3408 KB |
Output is correct |
| 13 |
Correct |
2 ms |
3408 KB |
Output is correct |
| 14 |
Correct |
3 ms |
3408 KB |
Output is correct |
| 15 |
Correct |
3 ms |
3576 KB |
Output is correct |
| 16 |
Correct |
3 ms |
3408 KB |
Output is correct |
| 17 |
Correct |
9 ms |
3656 KB |
Output is correct |
| 18 |
Correct |
7 ms |
3664 KB |
Output is correct |
| 19 |
Correct |
10 ms |
5712 KB |
Output is correct |
| 20 |
Correct |
11 ms |
5712 KB |
Output is correct |
| 21 |
Correct |
9 ms |
3408 KB |
Output is correct |
| 22 |
Correct |
11 ms |
3880 KB |
Output is correct |
| 23 |
Correct |
15 ms |
5712 KB |
Output is correct |
| 24 |
Correct |
9 ms |
5712 KB |
Output is correct |
| 25 |
Correct |
15 ms |
5712 KB |
Output is correct |
| 26 |
Correct |
13 ms |
5712 KB |
Output is correct |
| 27 |
Correct |
39 ms |
11088 KB |
Output is correct |
| 28 |
Correct |
48 ms |
11344 KB |
Output is correct |
| 29 |
Correct |
190 ms |
11856 KB |
Output is correct |
| 30 |
Correct |
228 ms |
14928 KB |
Output is correct |
| 31 |
Correct |
149 ms |
12112 KB |
Output is correct |
| 32 |
Correct |
118 ms |
14416 KB |
Output is correct |
| 33 |
Correct |
442 ms |
13408 KB |
Output is correct |
| 34 |
Correct |
37 ms |
11600 KB |
Output is correct |
| 35 |
Correct |
136 ms |
14928 KB |
Output is correct |
| 36 |
Incorrect |
186 ms |
14928 KB |
Output isn't correct |
| 37 |
Correct |
3 ms |
3408 KB |
Output is correct |
| 38 |
Correct |
118 ms |
98564 KB |
Output is correct |
| 39 |
Correct |
4 ms |
3604 KB |
Output is correct |
| 40 |
Incorrect |
20 ms |
25168 KB |
Output isn't correct |
| 41 |
Correct |
4 ms |
3408 KB |
Output is correct |
| 42 |
Correct |
18 ms |
5712 KB |
Output is correct |
| 43 |
Correct |
124 ms |
99484 KB |
Output is correct |
| 44 |
Incorrect |
356 ms |
15184 KB |
Output isn't correct |
| 45 |
Incorrect |
113 ms |
98552 KB |
Output isn't correct |
| 46 |
Correct |
137 ms |
98376 KB |
Output is correct |
| 47 |
Incorrect |
119 ms |
98384 KB |
Output isn't correct |
| 48 |
Incorrect |
130 ms |
98504 KB |
Output isn't correct |
| 49 |
Correct |
117 ms |
98604 KB |
Output is correct |
| 50 |
Incorrect |
122 ms |
98376 KB |
Output isn't correct |
| 51 |
Incorrect |
117 ms |
98376 KB |
Output isn't correct |
| 52 |
Incorrect |
119 ms |
98380 KB |
Output isn't correct |
| 53 |
Incorrect |
123 ms |
98380 KB |
Output isn't correct |
| 54 |
Incorrect |
123 ms |
98376 KB |
Output isn't correct |
| 55 |
Incorrect |
114 ms |
98380 KB |
Output isn't correct |
| 56 |
Correct |
133 ms |
98376 KB |
Output is correct |
| 57 |
Incorrect |
118 ms |
98376 KB |
Output isn't correct |
| 58 |
Incorrect |
139 ms |
98556 KB |
Output isn't correct |
| 59 |
Incorrect |
115 ms |
98540 KB |
Output isn't correct |
| 60 |
Correct |
119 ms |
98376 KB |
Output is correct |
| 61 |
Correct |
115 ms |
98376 KB |
Output is correct |
| 62 |
Correct |
117 ms |
98372 KB |
Output is correct |
| 63 |
Correct |
116 ms |
98468 KB |
Output is correct |
| 64 |
Correct |
116 ms |
98376 KB |
Output is correct |
| 65 |
Incorrect |
118 ms |
98552 KB |
Output isn't correct |
| 66 |
Incorrect |
122 ms |
98376 KB |
Output isn't correct |
| 67 |
Incorrect |
118 ms |
98524 KB |
Output isn't correct |
| 68 |
Incorrect |
118 ms |
98376 KB |
Output isn't correct |
| 69 |
Incorrect |
119 ms |
98376 KB |
Output isn't correct |
| 70 |
Incorrect |
85 ms |
79436 KB |
Output isn't correct |
| 71 |
Incorrect |
116 ms |
98472 KB |
Output isn't correct |
| 72 |
Incorrect |
117 ms |
98376 KB |
Output isn't correct |
| 73 |
Incorrect |
122 ms |
98540 KB |
Output isn't correct |
| 74 |
Incorrect |
124 ms |
98532 KB |
Output isn't correct |
| 75 |
Incorrect |
114 ms |
98376 KB |
Output isn't correct |
| 76 |
Incorrect |
117 ms |
98376 KB |
Output isn't correct |
| 77 |
Incorrect |
110 ms |
98520 KB |
Output isn't correct |
| 78 |
Incorrect |
117 ms |
98376 KB |
Output isn't correct |
| 79 |
Incorrect |
115 ms |
98380 KB |
Output isn't correct |
| 80 |
Incorrect |
118 ms |
98528 KB |
Output isn't correct |
| 81 |
Incorrect |
126 ms |
98376 KB |
Output isn't correct |
| 82 |
Incorrect |
126 ms |
98376 KB |
Output isn't correct |
| 83 |
Incorrect |
119 ms |
98524 KB |
Output isn't correct |
| 84 |
Incorrect |
112 ms |
98532 KB |
Output isn't correct |
| 85 |
Incorrect |
119 ms |
98380 KB |
Output isn't correct |
| 86 |
Incorrect |
114 ms |
98544 KB |
Output isn't correct |
| 87 |
Incorrect |
116 ms |
98388 KB |
Output isn't correct |
| 88 |
Incorrect |
116 ms |
98376 KB |
Output isn't correct |
| 89 |
Incorrect |
117 ms |
98460 KB |
Output isn't correct |
| 90 |
Incorrect |
89 ms |
79336 KB |
Output isn't correct |
| 91 |
Incorrect |
109 ms |
98376 KB |
Output isn't correct |
| 92 |
Incorrect |
113 ms |
98396 KB |
Output isn't correct |
| 93 |
Incorrect |
127 ms |
98632 KB |
Output isn't correct |
| 94 |
Incorrect |
119 ms |
98376 KB |
Output isn't correct |
| 95 |
Incorrect |
115 ms |
98380 KB |
Output isn't correct |
| 96 |
Incorrect |
117 ms |
98376 KB |
Output isn't correct |
| 97 |
Incorrect |
113 ms |
98484 KB |
Output isn't correct |
| 98 |
Incorrect |
120 ms |
98656 KB |
Output isn't correct |
| 99 |
Incorrect |
117 ms |
98456 KB |
Output isn't correct |
| 100 |
Incorrect |
119 ms |
98548 KB |
Output isn't correct |
