Submission #476489

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
476489	2021-09-27 10:56:34	keta_tsimakuridze	Snake Escaping (JOI18_snake_escaping)	C++14	22 / 100	582 ms	65540 KiB

snake_escaping

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<bits/stdc++.h>
#define f first
#define s second
////#define int long long
#define pii pair<int,int>
using namespace std;
const int N = 2e6 + 5, mod = 1e9 + 7; // !
int t,dp1[N][22],dp2[N][22],L,q;
vector<int> cnt[4];
main(){
      ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
            cin >> L >> q;
            string s;
            cin >> s;
            for(int i = 0; i < (1 << L); i++) { 
                        dp1[i][0] = s[i] - '0';
                        for(int j = 0; j < L; j++) {
                                    if(j) dp1[i][j] = dp1[i][j - 1];
                                    if((1 << j) & i) dp1[i][j] += dp1[i ^ (1 << j)][j];
                        }
            }
            for(int i = (1 << L) - 1; i >= 0; i--) {
                        dp2[i][0] = s[i] - '0';
                        for(int j = 0; j < L; j++) {
                                    if(j) dp2[i][j] = dp2[i][j - 1];
                                    if(!((1 << j) & i)) dp2[i][j] += dp2[i ^ (1 << j)][j];
                        }
            }
            while(q--) {
                        string t;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

snake_escaping.cpp:10:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   10 | main(){
      | ^~~~
snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:36:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |                         for(int i = 0; i < t.size(); i++) {
      |                                        ~~^~~~~~~~~~
snake_escaping.cpp:32:29: warning: unused variable 'x' [-Wunused-variable]
   32 |                         int x = 0;
      |                             ^

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25