Submission #110100

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
110100	2019-05-09 13:02:37	popovicirobert	Snake Escaping (JOI18_snake_escaping)	C++14	75 / 100	2058 ms	36492 KiB

snake_escaping

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#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
// 217
// 44
using namespace std;
int dp[2][1 << 20];
string str;
void bktQ(int p, vector <int> &bit, int cnf, int &ans) {
    if(p == bit.size()) {
        ans += str[cnf] - '0';
    }
    else {
        bktQ(p + 1, bit, cnf, ans);
        bktQ(p + 1, bit, cnf + (1 << bit[p]), ans);
    }
}
void bkt(int p, vector <int> &bit, int cnf, int &ans, int cnt, bool t) {
    if(p == bit.size()) {
        if(cnt & 1) {
            ans -= dp[t][cnf];
        }
        else {
            ans += dp[t][cnf];
        }
 
 
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Compilation message (stderr)

snake_escaping.cpp: In function 'void bktQ(int, std::vector<int>&, int, int&)':
snake_escaping.cpp:14:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(p == bit.size()) {
        ~~^~~~~~~~~~~~~
snake_escaping.cpp: In function 'void bkt(int, std::vector<int>&, int, int&, int, bool)':
snake_escaping.cpp:24:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(p == bit.size()) {
        ~~^~~~~~~~~~~~~
snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:71:13: warning: unused variable 'val' [-Wunused-variable]
         int val = 0;
             ^~~

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