oj.uz

Submission #677615

# Submission time Handle Problem Language Result Execution time Memory
677615 2023-01-04T01:31:22 Z jamezzz Snake Escaping (JOI18_snake_escaping) C++17
100 / 100
 1587 ms 43220 KB 
#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
#define dbg(...) printf(__VA_ARGS__);
#define getchar_unlocked getchar
#else
#define dbg(...)
#endif
#define sf scanf
#define pf printf
#define fi first
#define se second
#define pb push_back
#define psf push_front
#define ppb pop_back
#define ppf pop_front
#define sz(x) (int)x.size()
#define mnto(x,y) x=min(x,(__typeof__(x))y)
#define mxto(x,y) x=max(x,(__typeof__(x))y)
#define INF 1023456789
#define LINF 1023456789123456789
#define all(x) x.begin(),x.end()
#define lb(x,v) (lower_bound(all(x),v)-x.begin())
#define ub(x,v) (upper_bound(all(x),v)-x.begin())
#define disc(x) sort(all(x));x.resize(unique(all(x))-x.begin());
typedef long long ll;
typedef long double ld;
typedef pair<int,int> ii;
typedef pair<ll,ll> pll;
typedef tuple<int,int,int> iii;
typedef tuple<int,int,int,int> iiii;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
mt19937 rng(time(0));

#define mod 1000000007

inline int add(int a,int b){
	int r=a+b;
	while(r>=mod)r-=mod;
	while(r<0)r+=mod;
	return r;
}

inline int mult(int a,int b){
	return (int)(((ll)(a*b))%mod);
}

inline int rd(){
	int x=0;
	char ch=getchar_unlocked();
	while(!(ch&16))ch=getchar();//keep reading while current character is whitespace
    while(ch&16){//this will break when ‘\n’ or ‘ ‘ is encountered
		x=(x<<3)+(x<<1)+(ch&15);
		ch=getchar_unlocked();
	}
	return x;
}

#define maxn ((1<<20)+5)

int l,q,t[maxn],super[maxn],sub[maxn];
char s[maxn];

int main(){
	sf("%d%d",&l,&q);
	sf(" %s",&s);
	for(int i=0;i<(1<<l);++i){
		t[i]=s[i]-'0';
		sub[i]=super[i]=t[i];
	}
	for(int i=0;i<l;++i){
		for(int j=0;j<(1<<l);++j){
			if(j&(1<<i))sub[j]+=sub[j^(1<<i)];
		}
	}
	for(int i=0;i<l;++i){
		for(int j=(1<<l)-1;j>=0;--j){
			if((j&(1<<i))==0)super[j]+=super[j^(1<<i)];
		}
	}
	while(q--){
		sf(" %s",&s);
		int a=0,b=0,c=0;
		vi apos,bpos,cpos;
		for(int i=0;i<l;++i){
			if(s[i]=='0')++a,apos.pb(l-i-1);
			else if(s[i]=='1')++b,bpos.pb(l-i-1);
			else ++c,cpos.pb(l-i-1);
		}
		if(c<=6){
			int ans=0,m=0;
			for(int i:bpos)m^=1<<i;
			for(int i=0;i<(1<<c);++i){
				int nm=m,ti=i;
				for(int j=0;j<c;++j){
					nm^=(ti&1)<<cpos[j];
					ti>>=1;
				}
				ans+=t[nm];
			}
			pf("%d\n",ans);
		}
		else if(a<=6){
			int ans=0;
			int m=0;
			for(int i:bpos)m^=1<<i;
			for(int i=0;i<(1<<a);++i){
				int nm=m,t=i,tot=0;
				for(int j=0;j<a;++j){
					nm^=(t&1)<<apos[j];
					tot+=t&1;
					t>>=1;
				}
				ans+=super[nm]*(tot%2?-1:1);
			}
			pf("%d\n",ans);
		}
		else{
			int ans=0;
			int m=0;
			for(int i:cpos)m^=1<<i;
			for(int i=0;i<(1<<b);++i){
				int nm=m,t=i,tot=0;
				for(int j=0;j<b;++j){
					nm^=(t&1)<<bpos[j];
					tot+=t&1;
					t>>=1;
				}
				ans+=sub[nm]*((b-tot)%2?-1:1);
			}
			pf("%d\n",ans);
		}
	}
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:69:8: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[1048581]' [-Wformat=]
   69 |  sf(" %s",&s);
      |       ~^  ~~
      |        |  |
      |        |  char (*)[1048581]
      |        char*
snake_escaping.cpp:85:9: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[1048581]' [-Wformat=]
   85 |   sf(" %s",&s);
      |        ~^  ~~
      |         |  |
      |         |  char (*)[1048581]
      |         char*
snake_escaping.cpp:68:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |  sf("%d%d",&l,&q);
      |    ^
snake_escaping.cpp:69:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |  sf(" %s",&s);
      |    ^
snake_escaping.cpp:85:5: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |   sf(" %s",&s);
      |     ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 348 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 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 324 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 348 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 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 686 ms 4400 KB Output is correct
12 Correct 582 ms 4076 KB Output is correct
13 Correct 587 ms 3328 KB Output is correct
14 Correct 612 ms 3428 KB Output is correct
15 Correct 804 ms 4440 KB Output is correct
16 Correct 641 ms 3564 KB Output is correct
17 Correct 633 ms 3684 KB Output is correct
18 Correct 360 ms 5388 KB Output is correct
19 Correct 523 ms 2396 KB Output is correct
20 Correct 586 ms 4080 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 348 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 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 686 ms 4400 KB Output is correct
12 Correct 582 ms 4076 KB Output is correct
13 Correct 587 ms 3328 KB Output is correct
14 Correct 612 ms 3428 KB Output is correct
15 Correct 804 ms 4440 KB Output is correct
16 Correct 641 ms 3564 KB Output is correct
17 Correct 633 ms 3684 KB Output is correct
18 Correct 360 ms 5388 KB Output is correct
19 Correct 523 ms 2396 KB Output is correct
20 Correct 586 ms 4080 KB Output is correct
21 Correct 532 ms 4524 KB Output is correct
22 Correct 734 ms 4652 KB Output is correct
23 Correct 698 ms 3768 KB Output is correct
24 Correct 686 ms 3540 KB Output is correct
25 Correct 601 ms 5516 KB Output is correct
26 Correct 716 ms 3992 KB Output is correct
27 Correct 715 ms 4012 KB Output is correct
28 Correct 350 ms 6572 KB Output is correct
29 Correct 512 ms 2508 KB Output is correct
30 Correct 613 ms 4732 KB Output is correct
31 Correct 861 ms 4652 KB Output is correct
32 Correct 737 ms 4524 KB Output is correct
33 Correct 559 ms 3452 KB Output is correct
34 Correct 671 ms 3664 KB Output is correct
35 Correct 716 ms 3908 KB Output is correct
36 Correct 357 ms 2536 KB Output is correct
37 Correct 788 ms 4608 KB Output is correct
38 Correct 529 ms 2756 KB Output is correct
39 Correct 663 ms 3700 KB Output is correct
40 Correct 661 ms 3660 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 348 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 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 76 ms 14260 KB Output is correct
12 Correct 81 ms 14176 KB Output is correct
13 Correct 96 ms 14152 KB Output is correct
14 Correct 115 ms 14132 KB Output is correct
15 Correct 86 ms 14268 KB Output is correct
16 Correct 111 ms 14184 KB Output is correct
17 Correct 111 ms 14184 KB Output is correct
18 Correct 65 ms 14364 KB Output is correct
19 Correct 82 ms 14032 KB Output is correct
20 Correct 81 ms 14272 KB Output is correct
21 Correct 94 ms 14196 KB Output is correct
22 Correct 127 ms 14172 KB Output is correct
23 Correct 81 ms 14148 KB Output is correct
24 Correct 104 ms 14092 KB Output is correct
25 Correct 110 ms 14120 KB Output is correct
26 Correct 65 ms 14036 KB Output is correct
27 Correct 81 ms 14204 KB Output is correct
28 Correct 81 ms 14192 KB Output is correct
29 Correct 95 ms 14132 KB Output is correct
30 Correct 114 ms 14140 KB Output is correct
31 Correct 82 ms 14144 KB Output is correct
32 Correct 120 ms 14176 KB Output is correct
33 Correct 119 ms 14128 KB Output is correct
34 Correct 64 ms 14096 KB Output is correct
35 Correct 98 ms 14104 KB Output is correct
36 Correct 99 ms 14172 KB Output is correct
37 Correct 98 ms 14144 KB Output is correct
38 Correct 101 ms 14108 KB Output is correct
39 Correct 107 ms 14148 KB Output is correct
40 Correct 100 ms 14156 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 348 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 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 686 ms 4400 KB Output is correct
12 Correct 582 ms 4076 KB Output is correct
13 Correct 587 ms 3328 KB Output is correct
14 Correct 612 ms 3428 KB Output is correct
15 Correct 804 ms 4440 KB Output is correct
16 Correct 641 ms 3564 KB Output is correct
17 Correct 633 ms 3684 KB Output is correct
18 Correct 360 ms 5388 KB Output is correct
19 Correct 523 ms 2396 KB Output is correct
20 Correct 586 ms 4080 KB Output is correct
21 Correct 532 ms 4524 KB Output is correct
22 Correct 734 ms 4652 KB Output is correct
23 Correct 698 ms 3768 KB Output is correct
24 Correct 686 ms 3540 KB Output is correct
25 Correct 601 ms 5516 KB Output is correct
26 Correct 716 ms 3992 KB Output is correct
27 Correct 715 ms 4012 KB Output is correct
28 Correct 350 ms 6572 KB Output is correct
29 Correct 512 ms 2508 KB Output is correct
30 Correct 613 ms 4732 KB Output is correct
31 Correct 861 ms 4652 KB Output is correct
32 Correct 737 ms 4524 KB Output is correct
33 Correct 559 ms 3452 KB Output is correct
34 Correct 671 ms 3664 KB Output is correct
35 Correct 716 ms 3908 KB Output is correct
36 Correct 357 ms 2536 KB Output is correct
37 Correct 788 ms 4608 KB Output is correct
38 Correct 529 ms 2756 KB Output is correct
39 Correct 663 ms 3700 KB Output is correct
40 Correct 661 ms 3660 KB Output is correct
41 Correct 76 ms 14260 KB Output is correct
42 Correct 81 ms 14176 KB Output is correct
43 Correct 96 ms 14152 KB Output is correct
44 Correct 115 ms 14132 KB Output is correct
45 Correct 86 ms 14268 KB Output is correct
46 Correct 111 ms 14184 KB Output is correct
47 Correct 111 ms 14184 KB Output is correct
48 Correct 65 ms 14364 KB Output is correct
49 Correct 82 ms 14032 KB Output is correct
50 Correct 81 ms 14272 KB Output is correct
51 Correct 94 ms 14196 KB Output is correct
52 Correct 127 ms 14172 KB Output is correct
53 Correct 81 ms 14148 KB Output is correct
54 Correct 104 ms 14092 KB Output is correct
55 Correct 110 ms 14120 KB Output is correct
56 Correct 65 ms 14036 KB Output is correct
57 Correct 81 ms 14204 KB Output is correct
58 Correct 81 ms 14192 KB Output is correct
59 Correct 95 ms 14132 KB Output is correct
60 Correct 114 ms 14140 KB Output is correct
61 Correct 82 ms 14144 KB Output is correct
62 Correct 120 ms 14176 KB Output is correct
63 Correct 119 ms 14128 KB Output is correct
64 Correct 64 ms 14096 KB Output is correct
65 Correct 98 ms 14104 KB Output is correct
66 Correct 99 ms 14172 KB Output is correct
67 Correct 98 ms 14144 KB Output is correct
68 Correct 101 ms 14108 KB Output is correct
69 Correct 107 ms 14148 KB Output is correct
70 Correct 100 ms 14156 KB Output is correct
71 Correct 761 ms 18696 KB Output is correct
72 Correct 825 ms 18832 KB Output is correct
73 Correct 1046 ms 17252 KB Output is correct
74 Correct 1353 ms 17600 KB Output is correct
75 Correct 846 ms 41228 KB Output is correct
76 Correct 1484 ms 39416 KB Output is correct
77 Correct 1389 ms 39304 KB Output is correct
78 Correct 504 ms 43220 KB Output is correct
79 Correct 758 ms 37252 KB Output is correct
80 Correct 807 ms 40352 KB Output is correct
81 Correct 1091 ms 40176 KB Output is correct
82 Correct 1282 ms 39264 KB Output is correct
83 Correct 845 ms 38348 KB Output is correct
84 Correct 1286 ms 39276 KB Output is correct
85 Correct 1408 ms 39656 KB Output is correct
86 Correct 517 ms 37292 KB Output is correct
87 Correct 762 ms 40312 KB Output is correct
88 Correct 771 ms 37316 KB Output is correct
89 Correct 1043 ms 38792 KB Output is correct
90 Correct 1236 ms 39196 KB Output is correct
91 Correct 874 ms 38424 KB Output is correct
92 Correct 1587 ms 39556 KB Output is correct
93 Correct 1421 ms 39408 KB Output is correct
94 Correct 502 ms 37244 KB Output is correct
95 Correct 1215 ms 39328 KB Output is correct
96 Correct 1210 ms 39340 KB Output is correct
97 Correct 1216 ms 39280 KB Output is correct
98 Correct 1190 ms 39376 KB Output is correct
99 Correct 1188 ms 39308 KB Output is correct
100 Correct 1186 ms 39324 KB Output is correct