Submission #833206

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
833206	2023-08-22T03:12:30 Z	vjudge1	Bomb (IZhO17_bomb)	C++17	14 / 100	145 ms	131072 KB

bomb

#include<bits/stdc++.h>
#define ll long long
#define endl "\n"
#define fi first
#define se second
#define pb push_back
#define pll pair<long long, long long>
#define loop(i,n) for(int i=1;i<=n;i++)
#define loop0(i,n) for(int i=0;i<n;i++)
using namespace std;

//pbds template
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;

//template <class T>
//using ordered_set = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

void solve(){
	ll n,m;
	cin >> n >> m;
	string a;
	ll arr[n+5][m+5] = {0};
	for(int i=1;i<=n;i++){
		cin >> a;
		for(int j=0;j<a.size();j++){
			if(a[j]=='0'){
				arr[i][j+1] = 0;
			}
			else{
				arr[i][j+1] = 1;
			}
		}
	}
	ll pref[n+5][m+5] = {0};
	ll pref2[n+5][m+5] = {0};
	for(int i=1;i<=n;i++){
		pref[i][0] = 0;
		for(int j=1;j<=m;j++){
			if(arr[i][j]==1){
				pref[i][j] = pref[i][j-1]+1;
			}
			else{
				pref[i][j] = 0;
			}
		}
	}
	for(int i=1;i<=m;i++){
		pref2[0][i] = 0;
		for(int j=1;j<=n;j++){
			if(arr[j][i]==1){
				pref2[j][i] = pref2[j-1][i]+1;
			}
			else{
				pref2[j][i] = 0;
			}
		}
	}
//	cout << endl;
	ll row = 1e18;
	ll col = 1e18;
	for(int i=1;i<=n;i++){
		ll act = 0;
		ll mn = 1e18;
		ll temp = 0;
		for(int j=1;j<=m;j++){
//			cout << pref[i][j] << ' ';
			if(act==0&&pref[i][j]!=0){
				act = 1;
				temp = max(temp,pref[i][j]);
			}
			if(act==1){
				if(pref[i][j]==0){
					mn = min(mn,temp);
					act = 0;
					temp = 0;
				}
				else{
					temp = max(temp,pref[i][j]);
				}
			}
		}
		if(act==1){
			mn = min(mn,temp);
		}
		row = min(row,mn);
//		cout << endl;
	}
//	cout << endl;
	for(int j=1;j<=m;j++){
		ll act = 0;
		ll mn = 1e18;
		ll temp = 0;
		for(int i=1;i<=n;i++){
//			cout << pref2[i][j] << ' ';
			if(act==0&&pref2[i][j]!=0){
				act = 1;
				temp = max(temp,pref2[i][j]);
			}
			if(act==1){
				if(pref2[i][j]==0){
					mn = min(mn,temp);
					act = 0;
					temp = 0;
				}
				else{
					temp = max(temp,pref2[i][j]);
				}
			}
		}
		if(act==1){
			mn = min(temp,mn);
		}
		col = min(col,mn);
//		cout << endl;
	}
	ll ans = row*col;
	cout << ans << endl;
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int tc = 1;
//	cin >> tc;
	while(tc--){
	   solve();
	}
}

Compilation message

bomb.cpp: In function 'void solve()':
bomb.cpp:27:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for(int j=0;j<a.size();j++){
      |               ~^~~~~~~~~

Subtask #1

14.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	596 KB	Output is correct
4	Correct	1 ms	596 KB	Output is correct
5	Correct	0 ms	616 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Incorrect	0 ms	212 KB	Output isn't correct
9	Incorrect	0 ms	212 KB	Output isn't correct
10	Incorrect	0 ms	212 KB	Output isn't correct
11	Incorrect	0 ms	212 KB	Output isn't correct
12	Incorrect	0 ms	212 KB	Output isn't correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Incorrect	0 ms	212 KB	Output isn't correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Incorrect	1 ms	340 KB	Output isn't correct
19	Incorrect	0 ms	468 KB	Output isn't correct
20	Incorrect	0 ms	468 KB	Output isn't correct
21	Incorrect	0 ms	340 KB	Output isn't correct
22	Incorrect	1 ms	468 KB	Output isn't correct
23	Incorrect	0 ms	468 KB	Output isn't correct
24	Incorrect	0 ms	468 KB	Output isn't correct
25	Incorrect	1 ms	468 KB	Output isn't correct
26	Correct	0 ms	468 KB	Output is correct
27	Correct	2 ms	2132 KB	Output is correct
28	Incorrect	2 ms	2900 KB	Output isn't correct
29	Incorrect	2 ms	3284 KB	Output isn't correct
30	Incorrect	3 ms	4820 KB	Output isn't correct
31	Incorrect	3 ms	3924 KB	Output isn't correct
32	Incorrect	3 ms	4052 KB	Output isn't correct
33	Incorrect	4 ms	5076 KB	Output isn't correct
34	Incorrect	2 ms	2316 KB	Output isn't correct
35	Incorrect	4 ms	5176 KB	Output isn't correct
36	Correct	4 ms	5076 KB	Output is correct
37	Incorrect	0 ms	212 KB	Output isn't correct
38	Runtime error	62 ms	131072 KB	Execution killed with signal 9
39	Incorrect	1 ms	212 KB	Output isn't correct
40	Incorrect	22 ms	18644 KB	Output isn't correct
41	Incorrect	0 ms	212 KB	Output isn't correct
42	Incorrect	0 ms	468 KB	Output isn't correct
43	Runtime error	64 ms	131072 KB	Execution killed with signal 9
44	Incorrect	4 ms	5076 KB	Output isn't correct
45	Runtime error	65 ms	131072 KB	Execution killed with signal 9
46	Runtime error	62 ms	131072 KB	Execution killed with signal 9
47	Runtime error	64 ms	131072 KB	Execution killed with signal 9
48	Runtime error	61 ms	131072 KB	Execution killed with signal 9
49	Runtime error	69 ms	131072 KB	Execution killed with signal 9
50	Runtime error	65 ms	131072 KB	Execution killed with signal 9
51	Runtime error	73 ms	131072 KB	Execution killed with signal 9
52	Runtime error	59 ms	131072 KB	Execution killed with signal 9
53	Runtime error	59 ms	131072 KB	Execution killed with signal 9
54	Runtime error	71 ms	131072 KB	Execution killed with signal 9
55	Runtime error	64 ms	131072 KB	Execution killed with signal 9
56	Runtime error	58 ms	131072 KB	Execution killed with signal 9
57	Runtime error	64 ms	131072 KB	Execution killed with signal 9
58	Runtime error	66 ms	131072 KB	Execution killed with signal 9
59	Runtime error	68 ms	131072 KB	Execution killed with signal 9
60	Runtime error	64 ms	131072 KB	Execution killed with signal 9
61	Runtime error	64 ms	131072 KB	Execution killed with signal 9
62	Runtime error	66 ms	131072 KB	Execution killed with signal 9
63	Runtime error	60 ms	131072 KB	Execution killed with signal 9
64	Runtime error	64 ms	131072 KB	Execution killed with signal 9
65	Runtime error	60 ms	131072 KB	Execution killed with signal 9
66	Runtime error	61 ms	131072 KB	Execution killed with signal 9
67	Runtime error	62 ms	131072 KB	Execution killed with signal 9
68	Runtime error	59 ms	131072 KB	Execution killed with signal 9
69	Runtime error	58 ms	131072 KB	Execution killed with signal 9
70	Incorrect	142 ms	94700 KB	Output isn't correct
71	Runtime error	69 ms	131072 KB	Execution killed with signal 9
72	Runtime error	64 ms	131072 KB	Execution killed with signal 9
73	Runtime error	72 ms	131072 KB	Execution killed with signal 9
74	Runtime error	64 ms	131072 KB	Execution killed with signal 9
75	Runtime error	64 ms	131072 KB	Execution killed with signal 9
76	Runtime error	70 ms	131072 KB	Execution killed with signal 9
77	Runtime error	60 ms	131072 KB	Execution killed with signal 9
78	Runtime error	60 ms	131072 KB	Execution killed with signal 9
79	Runtime error	59 ms	131072 KB	Execution killed with signal 9
80	Runtime error	58 ms	131072 KB	Execution killed with signal 9
81	Runtime error	58 ms	131072 KB	Execution killed with signal 9
82	Runtime error	62 ms	131072 KB	Execution killed with signal 9
83	Runtime error	70 ms	131072 KB	Execution killed with signal 9
84	Runtime error	60 ms	131072 KB	Execution killed with signal 9
85	Runtime error	73 ms	131072 KB	Execution killed with signal 9
86	Runtime error	62 ms	131072 KB	Execution killed with signal 9
87	Runtime error	75 ms	131072 KB	Execution killed with signal 9
88	Runtime error	66 ms	131072 KB	Execution killed with signal 9
89	Runtime error	62 ms	131072 KB	Execution killed with signal 9
90	Incorrect	145 ms	94684 KB	Output isn't correct
91	Runtime error	65 ms	131072 KB	Execution killed with signal 9
92	Runtime error	62 ms	131072 KB	Execution killed with signal 9
93	Runtime error	59 ms	131072 KB	Execution killed with signal 9
94	Runtime error	59 ms	131072 KB	Execution killed with signal 9
95	Runtime error	63 ms	131072 KB	Execution killed with signal 9
96	Runtime error	61 ms	131072 KB	Execution killed with signal 9
97	Runtime error	61 ms	131072 KB	Execution killed with signal 9
98	Runtime error	62 ms	131072 KB	Execution killed with signal 9
99	Runtime error	62 ms	131072 KB	Execution killed with signal 9
100	Runtime error	62 ms	131072 KB	Execution killed with signal 9