oj.uz

Submission #68774

# Submission time Handle Problem Language Result Execution time Memory
68774 2018-08-18T10:56:38 Z tmwilliamlin168 Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 1642 ms 65160 KB 
#include <bits/stdc++.h>
using namespace std;

#define getchar_unlocked getchar
#define putchar_unlocked putchar

inline int in() {
	int result = 0;
	char ch = getchar_unlocked();
	while(true) {
		if(ch >= '0' && ch <= '9')
			break;
		ch = getchar_unlocked();
	}
	result = ch-'0';
	while(true) {
		ch = getchar_unlocked();
		if (ch < '0' || ch > '9')
			break;
		result = result*10 + (ch - '0');
	}
	return result;
}
inline void out(int x) {
	if(!x) {
		putchar_unlocked('0');
		return;
	}
	int rev=x, c=0;
	while(!(rev%10)) {
		++c;
		rev/=10;
	}
	rev=0;
	while(x) {
		rev=rev*10+x%10;
		x/=10;
	}
	while(rev) {
		putchar_unlocked(rev%10+'0');
		rev/=10;
	}
	while(c--)
		putchar_unlocked('0');
}

const int mxL=20, mxQ=1e6;
int l, q, dp[2][1<<mxL];
char s[1<<mxL];

int main() {
	l=in(), q=in();
	for(int i=0; i<1<<l; ++i)
		while(s[i]<'0'||s[i]>'9')
			s[i]=getchar_unlocked();
	for(int j=0; j<2; ++j) {
		for(int i=0; i<1<<l; ++i)
			dp[j][i]=s[i]-'0';
		for(int k=0; k<l; ++k)
			for(int i=0; i<1<<l; ++i)
				if(i>>k&1^j)
					dp[j][i]+=dp[j][i^1<<k];
	}
	while(q--) {
		int na=0, nb=0, nc=0, ma=0, mb=0, mc=0, ans=0;
		for(int i=0; i<l; ++i) {
			char c=getchar_unlocked();
			if(c=='0') {
				++na;
				ma|=1<<(l-1-i);
			} else if(c=='1') {
				++nb;
				mb|=1<<(l-1-i);
			} else if(c=='?') {
				++nc;
				mc|=1<<(l-1-i);
			} else
				--i;
		}
		if(na<nc||nb<nc) {
			bool sw=0;
			if(nb>na) {
				swap(mb, ma);
				sw=1;
			}
			for(int i=mb; ; i=(i-1)&mb) {
				ans+=dp[sw][(sw?(1<<l)-1:0)^i^mb^mc]*(__builtin_popcount(i)&1?-1:1);
				if(!i)
					break;
			}
		} else {
			for(int i=mc; ; i=(i-1)&mc) {
				ans+=s[i|mb]-'0';
				if(!i)
					break;
			}
		}
		out(ans);
		putchar_unlocked('\n');
	}
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:61:12: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     if(i>>k&1^j)
        ~~~~^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 380 KB Output is correct
2 Correct 4 ms 380 KB Output is correct
3 Correct 3 ms 444 KB Output is correct
4 Correct 3 ms 456 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 4 ms 612 KB Output is correct
7 Correct 2 ms 648 KB Output is correct
8 Correct 3 ms 732 KB Output is correct
9 Correct 2 ms 732 KB Output is correct
10 Correct 3 ms 732 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 380 KB Output is correct
2 Correct 4 ms 380 KB Output is correct
3 Correct 3 ms 444 KB Output is correct
4 Correct 3 ms 456 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 4 ms 612 KB Output is correct
7 Correct 2 ms 648 KB Output is correct
8 Correct 3 ms 732 KB Output is correct
9 Correct 2 ms 732 KB Output is correct
10 Correct 3 ms 732 KB Output is correct
11 Correct 271 ms 6404 KB Output is correct
12 Correct 237 ms 6404 KB Output is correct
13 Correct 270 ms 6404 KB Output is correct
14 Correct 275 ms 6404 KB Output is correct
15 Correct 282 ms 6472 KB Output is correct
16 Correct 269 ms 6472 KB Output is correct
17 Correct 264 ms 6472 KB Output is correct
18 Correct 197 ms 8908 KB Output is correct
19 Correct 196 ms 8908 KB Output is correct
20 Correct 259 ms 8908 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 380 KB Output is correct
2 Correct 4 ms 380 KB Output is correct
3 Correct 3 ms 444 KB Output is correct
4 Correct 3 ms 456 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 4 ms 612 KB Output is correct
7 Correct 2 ms 648 KB Output is correct
8 Correct 3 ms 732 KB Output is correct
9 Correct 2 ms 732 KB Output is correct
10 Correct 3 ms 732 KB Output is correct
11 Correct 271 ms 6404 KB Output is correct
12 Correct 237 ms 6404 KB Output is correct
13 Correct 270 ms 6404 KB Output is correct
14 Correct 275 ms 6404 KB Output is correct
15 Correct 282 ms 6472 KB Output is correct
16 Correct 269 ms 6472 KB Output is correct
17 Correct 264 ms 6472 KB Output is correct
18 Correct 197 ms 8908 KB Output is correct
19 Correct 196 ms 8908 KB Output is correct
20 Correct 259 ms 8908 KB Output is correct
21 Correct 286 ms 8908 KB Output is correct
22 Correct 299 ms 8908 KB Output is correct
23 Correct 358 ms 8908 KB Output is correct
24 Correct 322 ms 8908 KB Output is correct
25 Correct 338 ms 8952 KB Output is correct
26 Correct 411 ms 8952 KB Output is correct
27 Correct 339 ms 8952 KB Output is correct
28 Correct 270 ms 11688 KB Output is correct
29 Correct 261 ms 11688 KB Output is correct
30 Correct 361 ms 11688 KB Output is correct
31 Correct 419 ms 11688 KB Output is correct
32 Correct 482 ms 11688 KB Output is correct
33 Correct 306 ms 11688 KB Output is correct
34 Correct 331 ms 11688 KB Output is correct
35 Correct 373 ms 11688 KB Output is correct
36 Correct 218 ms 11688 KB Output is correct
37 Correct 296 ms 11688 KB Output is correct
38 Correct 264 ms 11688 KB Output is correct
39 Correct 354 ms 11688 KB Output is correct
40 Correct 299 ms 11688 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 380 KB Output is correct
2 Correct 4 ms 380 KB Output is correct
3 Correct 3 ms 444 KB Output is correct
4 Correct 3 ms 456 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 4 ms 612 KB Output is correct
7 Correct 2 ms 648 KB Output is correct
8 Correct 3 ms 732 KB Output is correct
9 Correct 2 ms 732 KB Output is correct
10 Correct 3 ms 732 KB Output is correct
11 Correct 110 ms 15820 KB Output is correct
12 Correct 113 ms 15944 KB Output is correct
13 Correct 142 ms 15944 KB Output is correct
14 Correct 144 ms 15944 KB Output is correct
15 Correct 134 ms 15944 KB Output is correct
16 Correct 169 ms 15944 KB Output is correct
17 Correct 133 ms 15944 KB Output is correct
18 Correct 110 ms 16076 KB Output is correct
19 Correct 117 ms 16076 KB Output is correct
20 Correct 118 ms 16076 KB Output is correct
21 Correct 142 ms 16076 KB Output is correct
22 Correct 159 ms 16076 KB Output is correct
23 Correct 134 ms 16076 KB Output is correct
24 Correct 156 ms 16076 KB Output is correct
25 Correct 182 ms 16076 KB Output is correct
26 Correct 107 ms 16076 KB Output is correct
27 Correct 140 ms 16076 KB Output is correct
28 Correct 133 ms 16076 KB Output is correct
29 Correct 155 ms 16076 KB Output is correct
30 Correct 116 ms 16076 KB Output is correct
31 Correct 128 ms 16076 KB Output is correct
32 Correct 157 ms 16076 KB Output is correct
33 Correct 179 ms 16076 KB Output is correct
34 Correct 114 ms 16076 KB Output is correct
35 Correct 156 ms 16076 KB Output is correct
36 Correct 159 ms 16076 KB Output is correct
37 Correct 145 ms 16076 KB Output is correct
38 Correct 155 ms 16076 KB Output is correct
39 Correct 187 ms 16076 KB Output is correct
40 Correct 145 ms 16076 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 380 KB Output is correct
2 Correct 4 ms 380 KB Output is correct
3 Correct 3 ms 444 KB Output is correct
4 Correct 3 ms 456 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 4 ms 612 KB Output is correct
7 Correct 2 ms 648 KB Output is correct
8 Correct 3 ms 732 KB Output is correct
9 Correct 2 ms 732 KB Output is correct
10 Correct 3 ms 732 KB Output is correct
11 Correct 271 ms 6404 KB Output is correct
12 Correct 237 ms 6404 KB Output is correct
13 Correct 270 ms 6404 KB Output is correct
14 Correct 275 ms 6404 KB Output is correct
15 Correct 282 ms 6472 KB Output is correct
16 Correct 269 ms 6472 KB Output is correct
17 Correct 264 ms 6472 KB Output is correct
18 Correct 197 ms 8908 KB Output is correct
19 Correct 196 ms 8908 KB Output is correct
20 Correct 259 ms 8908 KB Output is correct
21 Correct 286 ms 8908 KB Output is correct
22 Correct 299 ms 8908 KB Output is correct
23 Correct 358 ms 8908 KB Output is correct
24 Correct 322 ms 8908 KB Output is correct
25 Correct 338 ms 8952 KB Output is correct
26 Correct 411 ms 8952 KB Output is correct
27 Correct 339 ms 8952 KB Output is correct
28 Correct 270 ms 11688 KB Output is correct
29 Correct 261 ms 11688 KB Output is correct
30 Correct 361 ms 11688 KB Output is correct
31 Correct 419 ms 11688 KB Output is correct
32 Correct 482 ms 11688 KB Output is correct
33 Correct 306 ms 11688 KB Output is correct
34 Correct 331 ms 11688 KB Output is correct
35 Correct 373 ms 11688 KB Output is correct
36 Correct 218 ms 11688 KB Output is correct
37 Correct 296 ms 11688 KB Output is correct
38 Correct 264 ms 11688 KB Output is correct
39 Correct 354 ms 11688 KB Output is correct
40 Correct 299 ms 11688 KB Output is correct
41 Correct 110 ms 15820 KB Output is correct
42 Correct 113 ms 15944 KB Output is correct
43 Correct 142 ms 15944 KB Output is correct
44 Correct 144 ms 15944 KB Output is correct
45 Correct 134 ms 15944 KB Output is correct
46 Correct 169 ms 15944 KB Output is correct
47 Correct 133 ms 15944 KB Output is correct
48 Correct 110 ms 16076 KB Output is correct
49 Correct 117 ms 16076 KB Output is correct
50 Correct 118 ms 16076 KB Output is correct
51 Correct 142 ms 16076 KB Output is correct
52 Correct 159 ms 16076 KB Output is correct
53 Correct 134 ms 16076 KB Output is correct
54 Correct 156 ms 16076 KB Output is correct
55 Correct 182 ms 16076 KB Output is correct
56 Correct 107 ms 16076 KB Output is correct
57 Correct 140 ms 16076 KB Output is correct
58 Correct 133 ms 16076 KB Output is correct
59 Correct 155 ms 16076 KB Output is correct
60 Correct 116 ms 16076 KB Output is correct
61 Correct 128 ms 16076 KB Output is correct
62 Correct 157 ms 16076 KB Output is correct
63 Correct 179 ms 16076 KB Output is correct
64 Correct 114 ms 16076 KB Output is correct
65 Correct 156 ms 16076 KB Output is correct
66 Correct 159 ms 16076 KB Output is correct
67 Correct 145 ms 16076 KB Output is correct
68 Correct 155 ms 16076 KB Output is correct
69 Correct 187 ms 16076 KB Output is correct
70 Correct 145 ms 16076 KB Output is correct
71 Correct 638 ms 20640 KB Output is correct
72 Correct 694 ms 21356 KB Output is correct
73 Correct 832 ms 21356 KB Output is correct
74 Correct 1642 ms 21356 KB Output is correct
75 Correct 750 ms 22232 KB Output is correct
76 Correct 1631 ms 22232 KB Output is correct
77 Correct 1374 ms 22232 KB Output is correct
78 Correct 471 ms 24132 KB Output is correct
79 Correct 581 ms 24132 KB Output is correct
80 Correct 651 ms 24132 KB Output is correct
81 Correct 1025 ms 24132 KB Output is correct
82 Correct 1459 ms 24132 KB Output is correct
83 Correct 552 ms 24132 KB Output is correct
84 Correct 953 ms 24132 KB Output is correct
85 Correct 1086 ms 24132 KB Output is correct
86 Correct 394 ms 24132 KB Output is correct
87 Correct 729 ms 24132 KB Output is correct
88 Correct 617 ms 24132 KB Output is correct
89 Correct 788 ms 24132 KB Output is correct
90 Correct 736 ms 24132 KB Output is correct
91 Correct 629 ms 24132 KB Output is correct
92 Correct 1313 ms 24132 KB Output is correct
93 Correct 1109 ms 24132 KB Output is correct
94 Correct 365 ms 24132 KB Output is correct
95 Correct 950 ms 24132 KB Output is correct
96 Correct 877 ms 24132 KB Output is correct
97 Correct 916 ms 24132 KB Output is correct
98 Correct 932 ms 43648 KB Output is correct
99 Correct 865 ms 43648 KB Output is correct
100 Correct 926 ms 65160 KB Output is correct