| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 832223 |
2023-08-21T07:01:20 Z |
vjudge1 |
Bomb (IZhO17_bomb) |
C++14 |
|
130 ms |
55536 KB |
#include<bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using namespace std;
#define ll long long
#define rep(i,n,N) for(int i = n; i<=N; ++i)
#define rap(i,n,N) for(int i = n; i>=N; --i)
#define For(i,n,N) for(int i = n; i< N; ++i)
#define endl '\n'
#define pb push_back
#define all(x) x.begin(),x.end()
#define mems(x,y) memset(x,y,sizeof x)
#define ari(x) array<int,x>
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fi first
#define se second
const int MAX = 2500 + 5;
mt19937 rng(99);
int n,m,mnr,mnc,cnt,y[MAX][MAX],z[MAX][MAX];
char c;
bool x[MAX][MAX];
inline bool cek(int r,int c,int dr,int dc){
return y[r][c] - y[r-dr][c] - y[r][c-dc] + y[r-dr][c-dc] == dr*dc;
}
int main(){
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin>>n>>m;
mnr = n, mnc = m;
rep(i,1,n){
rep(j,1,m){
cin>>c;
x[i][j] = c=='1';
y[i][j] = y[i-1][j]+y[i][j-1]-y[i-1][j-1]+x[i][j];
if(x[i][j])++cnt;
else if(cnt)mnc = min(mnc, cnt), cnt = 0;
}
if(cnt)mnc = min(mnc, cnt), cnt = 0;
}
rep(j,1,m){
rep(i,1,n){
if(x[i][j])++cnt;
else if(cnt)mnr = min(mnr, cnt), cnt = 0;
}
if(cnt)mnr = min(mnr, cnt), cnt = 0;
}
rep(i,mnr,n)rep(j,mnc,m)if(x[i][j] && cek(i,j,mnr,mnc)){
z[i][j]++;
z[i-mnr][j]--;
z[i][j-mnc]--;
z[i-mnr][j-mnc]++;
}
rap(i,n,1)rap(j,m,1)z[i][j]+= z[i+1][j]+z[i][j+1]-z[i+1][j+1];
rep(i,1,n){
// if(i==1)cout<<"--------------\n";
// rep(j,1,m)cout<<z[i][j];
// cout<<endl;
rep(j,1,m){
if((!!z[i][j])!=x[i][j]){
assert(x[i][j]);
}
}
}
cout<<mnr*mnc<<endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
468 KB |
Output is correct |
| 3 |
Correct |
11 ms |
26508 KB |
Output is correct |
| 4 |
Correct |
11 ms |
26452 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 9 |
Incorrect |
0 ms |
468 KB |
Output isn't correct |
| 10 |
Incorrect |
0 ms |
468 KB |
Output isn't correct |
| 11 |
Incorrect |
0 ms |
468 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
0 ms |
468 KB |
Output is correct |
| 15 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 16 |
Correct |
0 ms |
468 KB |
Output is correct |
| 17 |
Correct |
1 ms |
980 KB |
Output is correct |
| 18 |
Incorrect |
1 ms |
1108 KB |
Output isn't correct |
| 19 |
Incorrect |
1 ms |
1364 KB |
Output isn't correct |
| 20 |
Incorrect |
1 ms |
1364 KB |
Output isn't correct |
| 21 |
Incorrect |
1 ms |
852 KB |
Output isn't correct |
| 22 |
Incorrect |
1 ms |
1108 KB |
Output isn't correct |
| 23 |
Incorrect |
1 ms |
1364 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
1236 KB |
Output isn't correct |
| 25 |
Incorrect |
1 ms |
1364 KB |
Output isn't correct |
| 26 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 27 |
Correct |
3 ms |
4052 KB |
Output is correct |
| 28 |
Incorrect |
3 ms |
4180 KB |
Output isn't correct |
| 29 |
Incorrect |
6 ms |
5332 KB |
Output isn't correct |
| 30 |
Incorrect |
5 ms |
6228 KB |
Output isn't correct |
| 31 |
Incorrect |
4 ms |
4948 KB |
Output isn't correct |
| 32 |
Incorrect |
5 ms |
5716 KB |
Output isn't correct |
| 33 |
Incorrect |
5 ms |
6612 KB |
Output isn't correct |
| 34 |
Incorrect |
3 ms |
4692 KB |
Output isn't correct |
| 35 |
Incorrect |
6 ms |
6612 KB |
Output isn't correct |
| 36 |
Correct |
6 ms |
6612 KB |
Output is correct |
| 37 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 38 |
Correct |
103 ms |
55536 KB |
Output is correct |
| 39 |
Incorrect |
0 ms |
468 KB |
Output isn't correct |
| 40 |
Incorrect |
17 ms |
15408 KB |
Output isn't correct |
| 41 |
Incorrect |
0 ms |
468 KB |
Output isn't correct |
| 42 |
Incorrect |
1 ms |
1364 KB |
Output isn't correct |
| 43 |
Correct |
104 ms |
55372 KB |
Output is correct |
| 44 |
Incorrect |
5 ms |
6612 KB |
Output isn't correct |
| 45 |
Incorrect |
101 ms |
55468 KB |
Output isn't correct |
| 46 |
Correct |
112 ms |
55372 KB |
Output is correct |
| 47 |
Incorrect |
108 ms |
55488 KB |
Output isn't correct |
| 48 |
Incorrect |
114 ms |
55404 KB |
Output isn't correct |
| 49 |
Correct |
107 ms |
55388 KB |
Output is correct |
| 50 |
Incorrect |
104 ms |
55480 KB |
Output isn't correct |
| 51 |
Incorrect |
105 ms |
55480 KB |
Output isn't correct |
| 52 |
Incorrect |
105 ms |
55416 KB |
Output isn't correct |
| 53 |
Incorrect |
106 ms |
55368 KB |
Output isn't correct |
| 54 |
Incorrect |
107 ms |
55372 KB |
Output isn't correct |
| 55 |
Incorrect |
107 ms |
55372 KB |
Output isn't correct |
| 56 |
Correct |
102 ms |
55392 KB |
Output is correct |
| 57 |
Incorrect |
105 ms |
55372 KB |
Output isn't correct |
| 58 |
Incorrect |
107 ms |
55372 KB |
Output isn't correct |
| 59 |
Incorrect |
130 ms |
55380 KB |
Output isn't correct |
| 60 |
Correct |
104 ms |
55372 KB |
Output is correct |
| 61 |
Correct |
107 ms |
55372 KB |
Output is correct |
| 62 |
Correct |
110 ms |
55460 KB |
Output is correct |
| 63 |
Correct |
100 ms |
55364 KB |
Output is correct |
| 64 |
Correct |
102 ms |
55432 KB |
Output is correct |
| 65 |
Incorrect |
104 ms |
55440 KB |
Output isn't correct |
| 66 |
Incorrect |
120 ms |
55500 KB |
Output isn't correct |
| 67 |
Incorrect |
106 ms |
55448 KB |
Output isn't correct |
| 68 |
Incorrect |
106 ms |
55392 KB |
Output isn't correct |
| 69 |
Incorrect |
108 ms |
55372 KB |
Output isn't correct |
| 70 |
Incorrect |
73 ms |
44368 KB |
Output isn't correct |
| 71 |
Incorrect |
103 ms |
55432 KB |
Output isn't correct |
| 72 |
Incorrect |
102 ms |
55396 KB |
Output isn't correct |
| 73 |
Incorrect |
102 ms |
55356 KB |
Output isn't correct |
| 74 |
Incorrect |
104 ms |
55360 KB |
Output isn't correct |
| 75 |
Incorrect |
102 ms |
55384 KB |
Output isn't correct |
| 76 |
Incorrect |
105 ms |
55360 KB |
Output isn't correct |
| 77 |
Incorrect |
109 ms |
55444 KB |
Output isn't correct |
| 78 |
Incorrect |
102 ms |
55448 KB |
Output isn't correct |
| 79 |
Incorrect |
103 ms |
55348 KB |
Output isn't correct |
| 80 |
Incorrect |
103 ms |
55440 KB |
Output isn't correct |
| 81 |
Incorrect |
105 ms |
55372 KB |
Output isn't correct |
| 82 |
Incorrect |
111 ms |
55384 KB |
Output isn't correct |
| 83 |
Incorrect |
105 ms |
55408 KB |
Output isn't correct |
| 84 |
Incorrect |
103 ms |
55448 KB |
Output isn't correct |
| 85 |
Incorrect |
103 ms |
55372 KB |
Output isn't correct |
| 86 |
Incorrect |
105 ms |
55360 KB |
Output isn't correct |
| 87 |
Incorrect |
107 ms |
55404 KB |
Output isn't correct |
| 88 |
Incorrect |
102 ms |
55372 KB |
Output isn't correct |
| 89 |
Incorrect |
105 ms |
55452 KB |
Output isn't correct |
| 90 |
Incorrect |
74 ms |
44360 KB |
Output isn't correct |
| 91 |
Incorrect |
101 ms |
55404 KB |
Output isn't correct |
| 92 |
Incorrect |
104 ms |
55468 KB |
Output isn't correct |
| 93 |
Incorrect |
116 ms |
55436 KB |
Output isn't correct |
| 94 |
Incorrect |
108 ms |
55376 KB |
Output isn't correct |
| 95 |
Incorrect |
110 ms |
55424 KB |
Output isn't correct |
| 96 |
Incorrect |
104 ms |
55416 KB |
Output isn't correct |
| 97 |
Incorrect |
112 ms |
55352 KB |
Output isn't correct |
| 98 |
Incorrect |
105 ms |
55396 KB |
Output isn't correct |
| 99 |
Incorrect |
104 ms |
55372 KB |
Output isn't correct |
| 100 |
Incorrect |
105 ms |
55360 KB |
Output isn't correct |
