Submission #171771

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
171771	2019-12-30T10:59:23 Z	mosiashvililuka	Bomb (IZhO17_bomb)	C++14	42 / 100	1000 ms	47480 KB

bomb

#include<bits/stdc++.h>
using namespace std;
int a,b,c,d,e,i,j,dp[2509][2509],zx,xc,qw,we,k[2509][2509],pas,dd,mxa,mxb;
string s;
bool f[2509][2509];
int main(){
    ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    cin>>a>>b;
    for(c=1; c<=a; c++){
        cin>>s;
        for(d=1; d<=b; d++){
            f[c][d]=s[d-1]-'0';
        }
    }
    if((a+b)*a*b>=20000000){
    mxb=mxa=a+b+2;
        for(c=1; c<=a; c++){
        	zx=0;
        	for(d=1; d<=b; d++){
        		if(f[c][d]==1){
        			zx++;
				}else{
				    if(zx!=0) mxa=min(zx,mxa);
					zx=0;
				}
			}
			if(zx!=0) mxa=min(zx,mxa);
		}
		for(d=1; d<=b; d++){
			xc=0;
			for(c=1; c<=a; c++){
				if(f[c][d]==1){
					xc++;
				}else{
				    if(xc!=0) mxb=min(mxb,xc);
					xc=0;
				}
			}
			if(xc!=0) mxb=min(mxb,xc);
		}
		cout<<mxa*mxb;
        return 0;
    }
    for(c=1; c<=a; c++){
        for(d=1; d<=b; d++) dp[c][d]=dp[c-1][d]+dp[c][d-1]-dp[c-1][d-1]+f[c][d];
    }
    d=b;
    for(c=1; c<=a; c++){
        while(d>=1){
            bool bo=0;
            for(i=1; i<=a; i++) for(j=1; j<=b; j++) k[i][j]=0;
            for(i=c; i<=a; i++){
                for(j=d; j<=b; j++){
                    qw=i-c+1;we=j-d+1;
                    if(dp[i][j]-dp[i][we-1]-dp[qw-1][j]+dp[qw-1][we-1]==c*d){
                        k[qw][we]=1;
                    }
                }
            }
/*            if(c==2&&d==2){
                for(i=1; i<=a; i++){
                    for(j=1; j<=b; j++) cout<<k[i][j]<<" ";
                    cout<<endl;
                }
            }
            if(c==2&&d==2) cout<<endl<<endl<<endl<<endl<<endl<<endl<<endl;*/
            for(i=1; i<=a; i++){
                for(j=1; j<=b; j++) k[i][j]=k[i-1][j]+k[i][j-1]-k[i-1][j-1]+k[i][j];
            }
/*            if(c==2&&d==2){
                for(i=1; i<=a; i++){
                    for(j=1; j<=b; j++) cout<<k[i][j]<<" ";
                    cout<<endl;
                }
            }*/
            for(i=1; i<=a; i++){
                if(bo==1) break;
                for(j=1; j<=b; j++){
                    if(f[i][j]==0) continue;
                    qw=i-c+1;we=j-d+1;
                    if(qw<=0) qw=1;
                    if(we<=0) we=1;
                    int hj=0;
                    hj=k[i][j]-k[qw-1][j]-k[i][we-1]+k[qw-1][we-1];
                    if(hj==0){
                        bo=1;
                        break;
                    }
                }
            }
            if(bo==0){
//                cout<<c<<" "<<d<<" vict"<<endl;
                if(pas<c*d) pas=c*d;
                break;
            }
  //          cout<<c<<" "<<d<<" lose"<<endl;
            d--;
        }
    }
    cout<<pas;
    return 0;
}

Subtask #1

42.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	632 KB	Output is correct
3	Correct	33 ms	26616 KB	Output is correct
4	Correct	36 ms	26616 KB	Output is correct
5	Correct	31 ms	376 KB	Output is correct
6	Correct	7 ms	380 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	504 KB	Output is correct
9	Correct	2 ms	504 KB	Output is correct
10	Correct	2 ms	504 KB	Output is correct
11	Correct	2 ms	604 KB	Output is correct
12	Correct	2 ms	504 KB	Output is correct
13	Correct	2 ms	504 KB	Output is correct
14	Correct	2 ms	504 KB	Output is correct
15	Correct	2 ms	508 KB	Output is correct
16	Correct	2 ms	504 KB	Output is correct
17	Correct	4 ms	1016 KB	Output is correct
18	Correct	5 ms	1144 KB	Output is correct
19	Correct	7 ms	1400 KB	Output is correct
20	Correct	7 ms	1400 KB	Output is correct
21	Correct	5 ms	1016 KB	Output is correct
22	Correct	6 ms	1272 KB	Output is correct
23	Correct	9 ms	1528 KB	Output is correct
24	Correct	8 ms	1276 KB	Output is correct
25	Correct	11 ms	1652 KB	Output is correct
26	Correct	9 ms	1528 KB	Output is correct
27	Correct	3 ms	1144 KB	Output is correct
28	Incorrect	3 ms	1144 KB	Output isn't correct
29	Incorrect	3 ms	1528 KB	Output isn't correct
30	Incorrect	4 ms	1528 KB	Output isn't correct
31	Incorrect	3 ms	1272 KB	Output isn't correct
32	Incorrect	4 ms	1528 KB	Output isn't correct
33	Incorrect	4 ms	1656 KB	Output isn't correct
34	Incorrect	3 ms	1400 KB	Output isn't correct
35	Incorrect	4 ms	1656 KB	Output isn't correct
36	Correct	4 ms	1528 KB	Output is correct
37	Correct	3 ms	632 KB	Output is correct
38	Correct	39 ms	7800 KB	Output is correct
39	Correct	2 ms	636 KB	Output is correct
40	Incorrect	7 ms	3196 KB	Output isn't correct
41	Correct	2 ms	504 KB	Output is correct
42	Correct	12 ms	1528 KB	Output is correct
43	Correct	39 ms	7928 KB	Output is correct
44	Incorrect	4 ms	1656 KB	Output isn't correct
45	Incorrect	38 ms	9588 KB	Output isn't correct
46	Correct	47 ms	7928 KB	Output is correct
47	Incorrect	43 ms	8040 KB	Output isn't correct
48	Incorrect	40 ms	9592 KB	Output isn't correct
49	Correct	41 ms	7928 KB	Output is correct
50	Incorrect	39 ms	7804 KB	Output isn't correct
51	Incorrect	41 ms	7800 KB	Output isn't correct
52	Incorrect	42 ms	7928 KB	Output isn't correct
53	Incorrect	40 ms	7800 KB	Output isn't correct
54	Incorrect	40 ms	7672 KB	Output isn't correct
55	Incorrect	41 ms	7672 KB	Output isn't correct
56	Correct	41 ms	7672 KB	Output is correct
57	Incorrect	42 ms	7672 KB	Output isn't correct
58	Incorrect	44 ms	7672 KB	Output isn't correct
59	Incorrect	43 ms	7800 KB	Output isn't correct
60	Correct	42 ms	7800 KB	Output is correct
61	Correct	35 ms	7800 KB	Output is correct
62	Correct	37 ms	7800 KB	Output is correct
63	Correct	38 ms	7800 KB	Output is correct
64	Correct	42 ms	7928 KB	Output is correct
65	Incorrect	38 ms	7928 KB	Output isn't correct
66	Incorrect	42 ms	7804 KB	Output isn't correct
67	Incorrect	37 ms	7800 KB	Output isn't correct
68	Incorrect	39 ms	7800 KB	Output isn't correct
69	Incorrect	39 ms	7800 KB	Output isn't correct
70	Execution timed out	1081 ms	47480 KB	Time limit exceeded
71	Incorrect	41 ms	7672 KB	Output isn't correct
72	Incorrect	41 ms	7672 KB	Output isn't correct
73	Incorrect	42 ms	7772 KB	Output isn't correct
74	Incorrect	42 ms	7672 KB	Output isn't correct
75	Incorrect	42 ms	7772 KB	Output isn't correct
76	Incorrect	40 ms	9464 KB	Output isn't correct
77	Incorrect	37 ms	7800 KB	Output isn't correct
78	Incorrect	38 ms	9464 KB	Output isn't correct
79	Incorrect	39 ms	7836 KB	Output isn't correct
80	Incorrect	39 ms	7800 KB	Output isn't correct
81	Incorrect	42 ms	7800 KB	Output isn't correct
82	Incorrect	41 ms	7928 KB	Output isn't correct
83	Incorrect	41 ms	7800 KB	Output isn't correct
84	Incorrect	47 ms	7800 KB	Output isn't correct
85	Incorrect	43 ms	7996 KB	Output isn't correct
86	Incorrect	39 ms	7916 KB	Output isn't correct
87	Incorrect	39 ms	7800 KB	Output isn't correct
88	Incorrect	38 ms	7800 KB	Output isn't correct
89	Incorrect	38 ms	7804 KB	Output isn't correct
90	Execution timed out	1072 ms	47480 KB	Time limit exceeded
91	Incorrect	40 ms	7672 KB	Output isn't correct
92	Incorrect	37 ms	7672 KB	Output isn't correct
93	Incorrect	38 ms	7796 KB	Output isn't correct
94	Incorrect	40 ms	7928 KB	Output isn't correct
95	Incorrect	39 ms	7800 KB	Output isn't correct
96	Incorrect	41 ms	7928 KB	Output isn't correct
97	Incorrect	35 ms	7928 KB	Output isn't correct
98	Incorrect	40 ms	7928 KB	Output isn't correct
99	Incorrect	39 ms	8000 KB	Output isn't correct
100	Incorrect	40 ms	7908 KB	Output isn't correct