Submission #1023355

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1023355	2024-07-14 16:44:46	snpmrnhlol	Snake Escaping (JOI18_snake_escaping)	C++17	100 / 100	674 ms	42180 KiB

snake_escaping

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#include<bits/stdc++.h>
using namespace std;
const int N = 20;
int cost[1<<N],cost0[1<<N],cost1[1<<N];
vector <int> pos;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n,q;
    cin>>n>>q;
    for(int i = 0;i < (1<<n);i++){
        char ch;
        cin>>ch;
        ch-='0';
        cost[i]+=ch;
        cost0[i]+=ch;
        cost1[i]+=ch;
    }
    for(int i = 0;i < n;i++){
        for(int j = 0;j < (1<<i);j++){
            for(int k = 0;k < (1<<n);k+=(1<<(i + 1))){
                cost0[(1<<i) + j + k]+=cost0[j + k];
                ///0 - 0
                ///1 - 0 and 1
            }
        }
    }
    for(int i = 0;i < n;i++){
        for(int j = 0;j < (1<<i);j++){
            for(int k = 0;k < (1<<n);k+=(1<<(i + 1))){
 
 
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Compilation message (stderr)

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:42:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         for(int j = 0;j < x.size();j++){
      |                       ~~^~~~~~~~~~

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