| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1114096 |
2024-11-18T07:45:35 Z |
adiyer |
Bomb (IZhO17_bomb) |
C++17 |
|
1000 ms |
123384 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[N][N];
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;
}
ll ff(ll W){
ll l = 0, r = m + 1;
while(r - l > 1){
if(f(W, md)) l = md;
else r = md;
}
return l * W;
}
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];
ll l = 0, r = n + 1;
while(r - l > 2){
ll m1 = l + (r - l) / 3;
ll m2 = r - (r - l) / 3;
if(ff(m1) < ff(m2)) l = m1;
else r = m2;
}
ll ans = 0;
for(ll i = max(1ll, l - 20); i <= min(n, r + 20); i++) ans = max(ans, ff(i));
cout << ans;
}
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 |
Incorrect |
7 ms |
26960 KB |
Output isn't correct |
| 2 |
Incorrect |
29 ms |
29196 KB |
Output isn't correct |
| 3 |
Incorrect |
73 ms |
72784 KB |
Output isn't correct |
| 4 |
Incorrect |
64 ms |
67964 KB |
Output isn't correct |
| 5 |
Incorrect |
13 ms |
26960 KB |
Output isn't correct |
| 6 |
Incorrect |
10 ms |
26960 KB |
Output isn't correct |
| 7 |
Correct |
22 ms |
27096 KB |
Output is correct |
| 8 |
Correct |
96 ms |
29008 KB |
Output is correct |
| 9 |
Correct |
92 ms |
29008 KB |
Output is correct |
| 10 |
Correct |
54 ms |
26960 KB |
Output is correct |
| 11 |
Correct |
98 ms |
29008 KB |
Output is correct |
| 12 |
Correct |
73 ms |
27132 KB |
Output is correct |
| 13 |
Correct |
48 ms |
26960 KB |
Output is correct |
| 14 |
Correct |
68 ms |
26960 KB |
Output is correct |
| 15 |
Correct |
73 ms |
26960 KB |
Output is correct |
| 16 |
Correct |
118 ms |
29008 KB |
Output is correct |
| 17 |
Correct |
125 ms |
29264 KB |
Output is correct |
| 18 |
Correct |
142 ms |
29264 KB |
Output is correct |
| 19 |
Correct |
175 ms |
29520 KB |
Output is correct |
| 20 |
Correct |
177 ms |
29520 KB |
Output is correct |
| 21 |
Correct |
138 ms |
29368 KB |
Output is correct |
| 22 |
Correct |
146 ms |
29264 KB |
Output is correct |
| 23 |
Correct |
162 ms |
29520 KB |
Output is correct |
| 24 |
Correct |
172 ms |
29264 KB |
Output is correct |
| 25 |
Incorrect |
224 ms |
29520 KB |
Output isn't correct |
| 26 |
Correct |
163 ms |
29520 KB |
Output is correct |
| 27 |
Correct |
224 ms |
36432 KB |
Output is correct |
| 28 |
Correct |
210 ms |
36432 KB |
Output is correct |
| 29 |
Correct |
470 ms |
39196 KB |
Output is correct |
| 30 |
Incorrect |
456 ms |
39768 KB |
Output isn't correct |
| 31 |
Incorrect |
439 ms |
38992 KB |
Output isn't correct |
| 32 |
Incorrect |
570 ms |
39248 KB |
Output isn't correct |
| 33 |
Correct |
676 ms |
41984 KB |
Output is correct |
| 34 |
Correct |
316 ms |
38792 KB |
Output is correct |
| 35 |
Incorrect |
445 ms |
41808 KB |
Output isn't correct |
| 36 |
Correct |
576 ms |
41988 KB |
Output is correct |
| 37 |
Correct |
63 ms |
29208 KB |
Output is correct |
| 38 |
Incorrect |
782 ms |
123008 KB |
Output isn't correct |
| 39 |
Correct |
66 ms |
29008 KB |
Output is correct |
| 40 |
Execution timed out |
1077 ms |
57680 KB |
Time limit exceeded |
| 41 |
Correct |
75 ms |
29008 KB |
Output is correct |
| 42 |
Correct |
286 ms |
29600 KB |
Output is correct |
| 43 |
Incorrect |
783 ms |
123172 KB |
Output isn't correct |
| 44 |
Correct |
707 ms |
41808 KB |
Output is correct |
| 45 |
Incorrect |
632 ms |
123168 KB |
Output isn't correct |
| 46 |
Execution timed out |
1057 ms |
122952 KB |
Time limit exceeded |
| 47 |
Incorrect |
637 ms |
122952 KB |
Output isn't correct |
| 48 |
Incorrect |
595 ms |
123156 KB |
Output isn't correct |
| 49 |
Incorrect |
738 ms |
122952 KB |
Output isn't correct |
| 50 |
Incorrect |
624 ms |
123064 KB |
Output isn't correct |
| 51 |
Incorrect |
503 ms |
122952 KB |
Output isn't correct |
| 52 |
Execution timed out |
1074 ms |
122952 KB |
Time limit exceeded |
| 53 |
Incorrect |
604 ms |
122952 KB |
Output isn't correct |
| 54 |
Incorrect |
631 ms |
122952 KB |
Output isn't correct |
| 55 |
Incorrect |
778 ms |
123156 KB |
Output isn't correct |
| 56 |
Incorrect |
548 ms |
123168 KB |
Output isn't correct |
| 57 |
Execution timed out |
1072 ms |
122952 KB |
Time limit exceeded |
| 58 |
Execution timed out |
1075 ms |
123152 KB |
Time limit exceeded |
| 59 |
Execution timed out |
1069 ms |
123208 KB |
Time limit exceeded |
| 60 |
Incorrect |
678 ms |
123160 KB |
Output isn't correct |
| 61 |
Incorrect |
603 ms |
122952 KB |
Output isn't correct |
| 62 |
Incorrect |
876 ms |
122956 KB |
Output isn't correct |
| 63 |
Incorrect |
761 ms |
123160 KB |
Output isn't correct |
| 64 |
Incorrect |
674 ms |
123384 KB |
Output isn't correct |
| 65 |
Incorrect |
664 ms |
123156 KB |
Output isn't correct |
| 66 |
Incorrect |
760 ms |
123168 KB |
Output isn't correct |
| 67 |
Incorrect |
562 ms |
122952 KB |
Output isn't correct |
| 68 |
Incorrect |
605 ms |
122952 KB |
Output isn't correct |
| 69 |
Execution timed out |
1068 ms |
123152 KB |
Time limit exceeded |
| 70 |
Execution timed out |
1072 ms |
105032 KB |
Time limit exceeded |
| 71 |
Execution timed out |
1068 ms |
122952 KB |
Time limit exceeded |
| 72 |
Execution timed out |
1070 ms |
123128 KB |
Time limit exceeded |
| 73 |
Execution timed out |
1072 ms |
122952 KB |
Time limit exceeded |
| 74 |
Execution timed out |
1074 ms |
122952 KB |
Time limit exceeded |
| 75 |
Execution timed out |
1062 ms |
122952 KB |
Time limit exceeded |
| 76 |
Execution timed out |
1059 ms |
122952 KB |
Time limit exceeded |
| 77 |
Execution timed out |
1085 ms |
123112 KB |
Time limit exceeded |
| 78 |
Execution timed out |
1077 ms |
123136 KB |
Time limit exceeded |
| 79 |
Execution timed out |
1079 ms |
123124 KB |
Time limit exceeded |
| 80 |
Execution timed out |
1051 ms |
123160 KB |
Time limit exceeded |
| 81 |
Execution timed out |
1075 ms |
122952 KB |
Time limit exceeded |
| 82 |
Execution timed out |
1068 ms |
122952 KB |
Time limit exceeded |
| 83 |
Execution timed out |
1062 ms |
122896 KB |
Time limit exceeded |
| 84 |
Execution timed out |
1069 ms |
123060 KB |
Time limit exceeded |
| 85 |
Execution timed out |
1077 ms |
122952 KB |
Time limit exceeded |
| 86 |
Execution timed out |
1053 ms |
122952 KB |
Time limit exceeded |
| 87 |
Execution timed out |
1066 ms |
122952 KB |
Time limit exceeded |
| 88 |
Execution timed out |
1079 ms |
122952 KB |
Time limit exceeded |
| 89 |
Execution timed out |
1073 ms |
122952 KB |
Time limit exceeded |
| 90 |
Execution timed out |
1069 ms |
105032 KB |
Time limit exceeded |
| 91 |
Execution timed out |
1055 ms |
122952 KB |
Time limit exceeded |
| 92 |
Execution timed out |
1070 ms |
122952 KB |
Time limit exceeded |
| 93 |
Execution timed out |
1062 ms |
122952 KB |
Time limit exceeded |
| 94 |
Execution timed out |
1072 ms |
122952 KB |
Time limit exceeded |
| 95 |
Execution timed out |
1062 ms |
123124 KB |
Time limit exceeded |
| 96 |
Execution timed out |
1061 ms |
122952 KB |
Time limit exceeded |
| 97 |
Execution timed out |
1075 ms |
122952 KB |
Time limit exceeded |
| 98 |
Execution timed out |
1058 ms |
123172 KB |
Time limit exceeded |
| 99 |
Execution timed out |
1067 ms |
123120 KB |
Time limit exceeded |
| 100 |
Execution timed out |
1065 ms |
122956 KB |
Time limit exceeded |
