Submission #58965

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
58965	2018-07-19T21:39:57 Z	TadijaSebez	Snake Escaping (JOI18_snake_escaping)	C++11	100 / 100	1522 ms	40724 KB

snake_escaping

#include <stdio.h>
const int N=1<<20;
int dp0[N],dp1[N],pc[N];
char s[N],t[20];
int min(int a, int b){ return a>b?b:a;}
int abs(int x){ return x>0?x:-x;}
int main()
{
	int n,q,i,mask;
	for(i=1;i<N;i++) pc[i]=pc[i-(i&-i)]+1;
	scanf("%i %i",&n,&q);
	scanf("%s",s);
	for(i=0;i<(1<<n);i++)
	{
		dp1[i]=dp0[((1<<n)-1)^i]=s[i]-'0';
	}
	for(i=0;i<n;i++)
	{
		for(mask=0;mask<(1<<n);mask++)
		{
			if((mask>>i)&1)
			{
				dp1[mask]+=dp1[mask^(1<<i)];
				dp0[mask]+=dp0[mask^(1<<i)];
			}
		}
	}
	while(q--)
	{
		scanf("%s",t);
		int a=0,b=0,c=0;
		for(i=0;i<n;i++)
		{
			if(t[n-i-1]=='0') a+=1<<i;
			else if(t[n-i-1]=='1') b+=1<<i;
			else c+=1<<i;
		}
		int ans=0;
		if(pc[a]<=min(pc[b],pc[c]))
		{
			for(mask=a;;mask=(mask-1)&a)
			{
				//printf("a:%i %i\n",a,mask);
				if((pc[mask]&1)==(pc[a]&1)) ans+=dp0[mask|c];
				else ans-=dp0[mask|c];
				if(!mask) break;
			}
		}
		else if(pc[b]<=min(pc[a],pc[c]))
		{
			for(mask=b;;mask=(mask-1)&b)
			{
				//printf("b:%i %i\n",b,mask);
				if((pc[mask]&1)==(pc[b]&1)) ans+=dp1[mask|c];
				else ans-=dp1[mask|c];
				if(!mask) break;
			}
		}
		else
		{
			for(mask=c;;mask=(mask-1)&c)
			{
				//printf("c:%i %i\n",c,mask);
				ans+=s[mask|b]-'0';
				if(!mask) break;
			}
		}
		printf("%i\n",abs(ans));
	}
	return 0;
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&n,&q);
  ~~~~~^~~~~~~~~~~~~~~
snake_escaping.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s);
  ~~~~~^~~~~~~~
snake_escaping.cpp:30:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",t);
   ~~~~~^~~~~~~~

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	4472 KB	Output is correct
2	Correct	7 ms	4596 KB	Output is correct
3	Correct	9 ms	4596 KB	Output is correct
4	Correct	8 ms	4596 KB	Output is correct
5	Correct	8 ms	4596 KB	Output is correct
6	Correct	7 ms	4752 KB	Output is correct
7	Correct	7 ms	4752 KB	Output is correct
8	Correct	7 ms	4752 KB	Output is correct
9	Correct	8 ms	4752 KB	Output is correct
10	Correct	7 ms	4752 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	4472 KB	Output is correct
2	Correct	7 ms	4596 KB	Output is correct
3	Correct	9 ms	4596 KB	Output is correct
4	Correct	8 ms	4596 KB	Output is correct
5	Correct	8 ms	4596 KB	Output is correct
6	Correct	7 ms	4752 KB	Output is correct
7	Correct	7 ms	4752 KB	Output is correct
8	Correct	7 ms	4752 KB	Output is correct
9	Correct	8 ms	4752 KB	Output is correct
10	Correct	7 ms	4752 KB	Output is correct
11	Correct	425 ms	8832 KB	Output is correct
12	Correct	366 ms	8832 KB	Output is correct
13	Correct	349 ms	8832 KB	Output is correct
14	Correct	440 ms	8832 KB	Output is correct
15	Correct	411 ms	8972 KB	Output is correct
16	Correct	404 ms	8972 KB	Output is correct
17	Correct	523 ms	8972 KB	Output is correct
18	Correct	343 ms	9976 KB	Output is correct
19	Correct	311 ms	9976 KB	Output is correct
20	Correct	417 ms	9976 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	4472 KB	Output is correct
2	Correct	7 ms	4596 KB	Output is correct
3	Correct	9 ms	4596 KB	Output is correct
4	Correct	8 ms	4596 KB	Output is correct
5	Correct	8 ms	4596 KB	Output is correct
6	Correct	7 ms	4752 KB	Output is correct
7	Correct	7 ms	4752 KB	Output is correct
8	Correct	7 ms	4752 KB	Output is correct
9	Correct	8 ms	4752 KB	Output is correct
10	Correct	7 ms	4752 KB	Output is correct
11	Correct	425 ms	8832 KB	Output is correct
12	Correct	366 ms	8832 KB	Output is correct
13	Correct	349 ms	8832 KB	Output is correct
14	Correct	440 ms	8832 KB	Output is correct
15	Correct	411 ms	8972 KB	Output is correct
16	Correct	404 ms	8972 KB	Output is correct
17	Correct	523 ms	8972 KB	Output is correct
18	Correct	343 ms	9976 KB	Output is correct
19	Correct	311 ms	9976 KB	Output is correct
20	Correct	417 ms	9976 KB	Output is correct
21	Correct	415 ms	9976 KB	Output is correct
22	Correct	401 ms	9976 KB	Output is correct
23	Correct	395 ms	9976 KB	Output is correct
24	Correct	534 ms	9976 KB	Output is correct
25	Correct	385 ms	9976 KB	Output is correct
26	Correct	522 ms	9976 KB	Output is correct
27	Correct	440 ms	9976 KB	Output is correct
28	Correct	293 ms	10848 KB	Output is correct
29	Correct	365 ms	10848 KB	Output is correct
30	Correct	397 ms	10848 KB	Output is correct
31	Correct	381 ms	10848 KB	Output is correct
32	Correct	396 ms	10848 KB	Output is correct
33	Correct	383 ms	10848 KB	Output is correct
34	Correct	429 ms	10848 KB	Output is correct
35	Correct	402 ms	10848 KB	Output is correct
36	Correct	270 ms	10848 KB	Output is correct
37	Correct	325 ms	10848 KB	Output is correct
38	Correct	374 ms	10848 KB	Output is correct
39	Correct	423 ms	10848 KB	Output is correct
40	Correct	420 ms	10848 KB	Output is correct

Subtask #4
53.0 / 53.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	4472 KB	Output is correct
2	Correct	7 ms	4596 KB	Output is correct
3	Correct	9 ms	4596 KB	Output is correct
4	Correct	8 ms	4596 KB	Output is correct
5	Correct	8 ms	4596 KB	Output is correct
6	Correct	7 ms	4752 KB	Output is correct
7	Correct	7 ms	4752 KB	Output is correct
8	Correct	7 ms	4752 KB	Output is correct
9	Correct	8 ms	4752 KB	Output is correct
10	Correct	7 ms	4752 KB	Output is correct
11	Correct	113 ms	14440 KB	Output is correct
12	Correct	107 ms	14560 KB	Output is correct
13	Correct	102 ms	14560 KB	Output is correct
14	Correct	124 ms	14560 KB	Output is correct
15	Correct	90 ms	14560 KB	Output is correct
16	Correct	171 ms	14560 KB	Output is correct
17	Correct	128 ms	14560 KB	Output is correct
18	Correct	68 ms	14624 KB	Output is correct
19	Correct	89 ms	14624 KB	Output is correct
20	Correct	83 ms	14624 KB	Output is correct
21	Correct	96 ms	14624 KB	Output is correct
22	Correct	124 ms	14624 KB	Output is correct
23	Correct	87 ms	14624 KB	Output is correct
24	Correct	129 ms	14624 KB	Output is correct
25	Correct	125 ms	14624 KB	Output is correct
26	Correct	76 ms	14624 KB	Output is correct
27	Correct	91 ms	14624 KB	Output is correct
28	Correct	91 ms	14624 KB	Output is correct
29	Correct	103 ms	14624 KB	Output is correct
30	Correct	80 ms	14624 KB	Output is correct
31	Correct	109 ms	14624 KB	Output is correct
32	Correct	104 ms	14632 KB	Output is correct
33	Correct	124 ms	14632 KB	Output is correct
34	Correct	71 ms	14632 KB	Output is correct
35	Correct	102 ms	14632 KB	Output is correct
36	Correct	136 ms	14632 KB	Output is correct
37	Correct	87 ms	14632 KB	Output is correct
38	Correct	120 ms	14756 KB	Output is correct
39	Correct	105 ms	14756 KB	Output is correct
40	Correct	105 ms	14756 KB	Output is correct

Subtask #5
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	4472 KB	Output is correct
2	Correct	7 ms	4596 KB	Output is correct
3	Correct	9 ms	4596 KB	Output is correct
4	Correct	8 ms	4596 KB	Output is correct
5	Correct	8 ms	4596 KB	Output is correct
6	Correct	7 ms	4752 KB	Output is correct
7	Correct	7 ms	4752 KB	Output is correct
8	Correct	7 ms	4752 KB	Output is correct
9	Correct	8 ms	4752 KB	Output is correct
10	Correct	7 ms	4752 KB	Output is correct
11	Correct	425 ms	8832 KB	Output is correct
12	Correct	366 ms	8832 KB	Output is correct
13	Correct	349 ms	8832 KB	Output is correct
14	Correct	440 ms	8832 KB	Output is correct
15	Correct	411 ms	8972 KB	Output is correct
16	Correct	404 ms	8972 KB	Output is correct
17	Correct	523 ms	8972 KB	Output is correct
18	Correct	343 ms	9976 KB	Output is correct
19	Correct	311 ms	9976 KB	Output is correct
20	Correct	417 ms	9976 KB	Output is correct
21	Correct	415 ms	9976 KB	Output is correct
22	Correct	401 ms	9976 KB	Output is correct
23	Correct	395 ms	9976 KB	Output is correct
24	Correct	534 ms	9976 KB	Output is correct
25	Correct	385 ms	9976 KB	Output is correct
26	Correct	522 ms	9976 KB	Output is correct
27	Correct	440 ms	9976 KB	Output is correct
28	Correct	293 ms	10848 KB	Output is correct
29	Correct	365 ms	10848 KB	Output is correct
30	Correct	397 ms	10848 KB	Output is correct
31	Correct	381 ms	10848 KB	Output is correct
32	Correct	396 ms	10848 KB	Output is correct
33	Correct	383 ms	10848 KB	Output is correct
34	Correct	429 ms	10848 KB	Output is correct
35	Correct	402 ms	10848 KB	Output is correct
36	Correct	270 ms	10848 KB	Output is correct
37	Correct	325 ms	10848 KB	Output is correct
38	Correct	374 ms	10848 KB	Output is correct
39	Correct	423 ms	10848 KB	Output is correct
40	Correct	420 ms	10848 KB	Output is correct
41	Correct	113 ms	14440 KB	Output is correct
42	Correct	107 ms	14560 KB	Output is correct
43	Correct	102 ms	14560 KB	Output is correct
44	Correct	124 ms	14560 KB	Output is correct
45	Correct	90 ms	14560 KB	Output is correct
46	Correct	171 ms	14560 KB	Output is correct
47	Correct	128 ms	14560 KB	Output is correct
48	Correct	68 ms	14624 KB	Output is correct
49	Correct	89 ms	14624 KB	Output is correct
50	Correct	83 ms	14624 KB	Output is correct
51	Correct	96 ms	14624 KB	Output is correct
52	Correct	124 ms	14624 KB	Output is correct
53	Correct	87 ms	14624 KB	Output is correct
54	Correct	129 ms	14624 KB	Output is correct
55	Correct	125 ms	14624 KB	Output is correct
56	Correct	76 ms	14624 KB	Output is correct
57	Correct	91 ms	14624 KB	Output is correct
58	Correct	91 ms	14624 KB	Output is correct
59	Correct	103 ms	14624 KB	Output is correct
60	Correct	80 ms	14624 KB	Output is correct
61	Correct	109 ms	14624 KB	Output is correct
62	Correct	104 ms	14632 KB	Output is correct
63	Correct	124 ms	14632 KB	Output is correct
64	Correct	71 ms	14632 KB	Output is correct
65	Correct	102 ms	14632 KB	Output is correct
66	Correct	136 ms	14632 KB	Output is correct
67	Correct	87 ms	14632 KB	Output is correct
68	Correct	120 ms	14756 KB	Output is correct
69	Correct	105 ms	14756 KB	Output is correct
70	Correct	105 ms	14756 KB	Output is correct
71	Correct	789 ms	19280 KB	Output is correct
72	Correct	582 ms	19536 KB	Output is correct
73	Correct	690 ms	19536 KB	Output is correct
74	Correct	871 ms	19536 KB	Output is correct
75	Correct	597 ms	20660 KB	Output is correct
76	Correct	1002 ms	20660 KB	Output is correct
77	Correct	939 ms	20660 KB	Output is correct
78	Correct	373 ms	22556 KB	Output is correct
79	Correct	709 ms	22556 KB	Output is correct
80	Correct	791 ms	22556 KB	Output is correct
81	Correct	802 ms	22556 KB	Output is correct
82	Correct	1285 ms	22556 KB	Output is correct
83	Correct	779 ms	22556 KB	Output is correct
84	Correct	1477 ms	22556 KB	Output is correct
85	Correct	986 ms	22556 KB	Output is correct
86	Correct	391 ms	22556 KB	Output is correct
87	Correct	547 ms	22556 KB	Output is correct
88	Correct	578 ms	22556 KB	Output is correct
89	Correct	705 ms	22556 KB	Output is correct
90	Correct	922 ms	22556 KB	Output is correct
91	Correct	623 ms	39772 KB	Output is correct
92	Correct	1522 ms	40716 KB	Output is correct
93	Correct	1069 ms	40716 KB	Output is correct
94	Correct	341 ms	40716 KB	Output is correct
95	Correct	937 ms	40716 KB	Output is correct
96	Correct	936 ms	40724 KB	Output is correct
97	Correct	929 ms	40724 KB	Output is correct
98	Correct	985 ms	40724 KB	Output is correct
99	Correct	1036 ms	40724 KB	Output is correct
100	Correct	939 ms	40724 KB	Output is correct

Submission #58965

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 10.0 / 10.0

Subtask #4 53.0 / 53.0

Subtask #5 25.0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
10.0 / 10.0

Subtask #4
53.0 / 53.0

Subtask #5
25.0 / 25.0