Submission #915535

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
915535	2024-01-24T06:31:47 Z	vjudge1	Bomb (IZhO17_bomb)	C++17	29 / 100	1000 ms	56584 KB

bomb

/*#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization("unroll-loops")
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")*/
#include <bits/stdc++.h>
#include <iomanip>
#define ll long long
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define str string
#define pii pair<int,int>
#define sz(x) x.size()
#define all(x) x.begin(), x.end()
#define vi vector<int>
#define mii map<int,int>
#define mll map<ll,ll>
#define yes cout<<"YES\n";
#define no cout<<"NO\n";
#define yess cout<<"Yes\n";
#define noo cout<<"No\n";
using namespace std;

int pp[501][501];
int u[501][501];

void solve(){
    int n,m;
    cin>>n>>m;
    if(n==1){
        str s;
        cin>>s;
        vector<int >v;
        int k=0;
        for(int i=0;i<m;i++){
            if(s[i]=='1')k++;
            else{
                if(k>0){
                    v.pb(k);
                    k=0;
                }
            }
        }
        if(k>0){
            v.pb(k);
        }
        int ans=1;
        if(v.size()==0){
            cout<<0;
            return;
        }
        for(int i=2;i<=m;i++){
            k=1;
            for(int j=0;j<(int)v.size();j++){
                if(v[j]<i){
                    k=0;
                    break;
                }
            }
            if(k==1){
                ans=i;
            }
        }
        cout<<ans;
    }
    else if(m==1){
        char s;
        vector<int >v;
        int k=0;
        for(int i=0;i<n;i++){
            cin>>s;
            if(s=='1')k++;
            else{
                if(k>0){
                    v.pb(k);
                    k=0;
                }
            }
        }
        if(k>0){
            v.pb(k);
        }
        int ans=1;
        if(v.size()==0){
            cout<<0;
            return;
        }
        for(int i=2;i<=n;i++){
            k=1;
            for(int j=0;j<(int)v.size();j++){
                if(v[j]<i){
                    k=0;
                    break;
                }
            }
            if(k==1){
                ans=i;
            }
        }
        cout<<ans;
    }
    else{
        str s[n+3];
        int a[n+3][m+3];
        int o=0;
        for(int i=1;i<=n;i++){
            cin>>s[i];
            for(int j=0;j<m;j++){
                a[i][j+1]=s[i][j]-'0';
                o+=(a[i][j]==1);
                pp[i][j+1]=a[i][j+1]+pp[i][j]+pp[i-1][j+1]-pp[i-1][j];
            }
        }
        if(o==0){
            cout<<0;
            return;
        }
        int ans=0;
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                if(i*j<=ans){
                    continue;
                }
                for(int i1=1;i1<=n;i1++){
                    for(int j1=1;j1<=m;j1++){
                        u[i1][j1]=0;
                    }
                }
                for(int i1=1;i1<=n;i1++){
                    for(int j1=1;j1<=m;j1++){
                        if(i1+i-1>n || j1+j-1>m)continue;
                        if(pp[i1+i-1][j1+j-1]+pp[i1-1][j1-1]-pp[i1+i-1][j1-1]-pp[i1-1][j1+j-1]==i*j){
                            for(int i2=i1;i2<=i1+i-1;i2++){
                                for(int j2=j1;j2<=j1+j-1;j2++){
                                    u[i2][j2]=1;
                                }
                            }
                        }
                    }
                }
                int k=1;
                for(int i1=1;i1<=n;i1++){
                    for(int j1=1;j1<=m;j1++){
                        if(u[i1][j1]!=a[i1][j1]){
                            k=0;
                            break;
                        }
                    }
                }
                if(k==1){
                    /*cout<<i<<" "<<j<<"\n";
                    for(int i1=1;i1<=n;i1++){
                        for(int j1=1;j1<=m;j1++){
                            cout<<u[i1][j1];
                        }
                        cout<<"\n";
                    }//*/
                    ans=max(ans,i*j);
                }
            }
        }
        cout<<ans;
    }
}

signed main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	//srand( time(0));
	//rand()
	//freopen("sum.in", "r", stdin);
	//freopen("sum.out", "w", stdout);
    int tests=1;
    //cin>>tests;
    for(int i=1;i<=tests;i++){
		//cout<<"TEST CASE : "<<i<<"\n";
		solve();
	}
}

Subtask #1

29.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	460 KB	Output is correct
12	Correct	0 ms	464 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	27 ms	604 KB	Output is correct
18	Correct	24 ms	604 KB	Output is correct
19	Correct	69 ms	860 KB	Output is correct
20	Correct	75 ms	856 KB	Output is correct
21	Correct	29 ms	600 KB	Output is correct
22	Correct	63 ms	600 KB	Output is correct
23	Correct	130 ms	908 KB	Output is correct
24	Correct	46 ms	804 KB	Output is correct
25	Correct	189 ms	912 KB	Output is correct
26	Execution timed out	1035 ms	856 KB	Time limit exceeded
27	Execution timed out	1069 ms	1884 KB	Time limit exceeded
28	Execution timed out	1046 ms	2140 KB	Time limit exceeded
29	Execution timed out	1062 ms	2652 KB	Time limit exceeded
30	Execution timed out	1053 ms	3164 KB	Time limit exceeded
31	Execution timed out	1047 ms	2648 KB	Time limit exceeded
32	Execution timed out	1051 ms	2904 KB	Time limit exceeded
33	Execution timed out	1039 ms	3420 KB	Time limit exceeded
34	Execution timed out	1032 ms	2140 KB	Time limit exceeded
35	Execution timed out	1049 ms	3420 KB	Time limit exceeded
36	Execution timed out	1027 ms	3420 KB	Time limit exceeded
37	Correct	1 ms	348 KB	Output is correct
38	Runtime error	46 ms	56148 KB	Execution killed with signal 11
39	Correct	1 ms	348 KB	Output is correct
40	Runtime error	10 ms	10332 KB	Execution killed with signal 11
41	Correct	1 ms	348 KB	Output is correct
42	Correct	698 ms	904 KB	Output is correct
43	Runtime error	47 ms	56320 KB	Execution killed with signal 11
44	Execution timed out	1073 ms	3420 KB	Time limit exceeded
45	Runtime error	52 ms	55928 KB	Execution killed with signal 11
46	Runtime error	47 ms	56228 KB	Execution killed with signal 11
47	Runtime error	45 ms	56144 KB	Execution killed with signal 11
48	Runtime error	49 ms	56148 KB	Execution killed with signal 11
49	Runtime error	47 ms	56036 KB	Execution killed with signal 11
50	Runtime error	46 ms	56072 KB	Execution killed with signal 11
51	Runtime error	46 ms	56152 KB	Execution killed with signal 11
52	Runtime error	57 ms	56404 KB	Execution killed with signal 11
53	Runtime error	50 ms	56260 KB	Execution killed with signal 11
54	Runtime error	47 ms	56240 KB	Execution killed with signal 11
55	Runtime error	47 ms	56180 KB	Execution killed with signal 11
56	Runtime error	52 ms	56076 KB	Execution killed with signal 11
57	Runtime error	47 ms	56140 KB	Execution killed with signal 11
58	Runtime error	46 ms	56556 KB	Execution killed with signal 11
59	Runtime error	47 ms	55940 KB	Execution killed with signal 11
60	Runtime error	52 ms	56144 KB	Execution killed with signal 11
61	Runtime error	45 ms	55376 KB	Execution killed with signal 11
62	Runtime error	48 ms	56088 KB	Execution killed with signal 11
63	Runtime error	44 ms	56088 KB	Execution killed with signal 11
64	Runtime error	44 ms	55520 KB	Execution killed with signal 11
65	Runtime error	50 ms	55892 KB	Execution killed with signal 11
66	Runtime error	45 ms	56404 KB	Execution killed with signal 11
67	Runtime error	46 ms	55744 KB	Execution killed with signal 11
68	Runtime error	55 ms	55888 KB	Execution killed with signal 11
69	Runtime error	45 ms	56144 KB	Execution killed with signal 11
70	Runtime error	30 ms	37456 KB	Execution killed with signal 11
71	Runtime error	49 ms	56584 KB	Execution killed with signal 11
72	Runtime error	51 ms	55920 KB	Execution killed with signal 11
73	Runtime error	56 ms	56404 KB	Execution killed with signal 11
74	Runtime error	46 ms	56144 KB	Execution killed with signal 11
75	Runtime error	45 ms	56304 KB	Execution killed with signal 11
76	Runtime error	45 ms	56144 KB	Execution killed with signal 11
77	Runtime error	47 ms	56556 KB	Execution killed with signal 11
78	Runtime error	45 ms	56148 KB	Execution killed with signal 11
79	Runtime error	46 ms	55892 KB	Execution killed with signal 11
80	Runtime error	49 ms	56112 KB	Execution killed with signal 11
81	Runtime error	46 ms	56144 KB	Execution killed with signal 11
82	Runtime error	46 ms	56148 KB	Execution killed with signal 11
83	Runtime error	46 ms	55380 KB	Execution killed with signal 11
84	Runtime error	45 ms	55892 KB	Execution killed with signal 11
85	Runtime error	56 ms	55892 KB	Execution killed with signal 11
86	Runtime error	49 ms	56152 KB	Execution killed with signal 11
87	Runtime error	46 ms	55896 KB	Execution killed with signal 11
88	Runtime error	54 ms	56140 KB	Execution killed with signal 11
89	Runtime error	45 ms	56400 KB	Execution killed with signal 11
90	Runtime error	32 ms	37396 KB	Execution killed with signal 11
91	Runtime error	44 ms	55888 KB	Execution killed with signal 11
92	Runtime error	45 ms	56144 KB	Execution killed with signal 11
93	Runtime error	55 ms	56144 KB	Execution killed with signal 11
94	Runtime error	46 ms	55888 KB	Execution killed with signal 11
95	Runtime error	48 ms	56160 KB	Execution killed with signal 11
96	Runtime error	45 ms	55624 KB	Execution killed with signal 11
97	Runtime error	44 ms	55700 KB	Execution killed with signal 11
98	Runtime error	46 ms	55892 KB	Execution killed with signal 11
99	Runtime error	44 ms	56028 KB	Execution killed with signal 11
100	Runtime error	57 ms	55632 KB	Execution killed with signal 11