Submission #228296

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
228296	2020-04-30 12:21:25	Ruxandra985	Snake Escaping (JOI18_snake_escaping)	C++14	75 / 100	2086 ms	26104 KiB

snake_escaping

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#include <bits/stdc++.h>
#define DIMN 2000000
using namespace std;
int sol , nr;
int n;
char s[30];
char v[2000000];
int bits[DIMN] , dp0[DIMN] , dp1[DIMN];
void solve_brut (int poz){
    if (poz == n + 1){
        sol += v[nr] - '0';
        return;
    }
    if (s[poz] != '?'){
        nr = nr * 2 + (s[poz] - '0');
        solve_brut (poz + 1);
        nr /= 2;
    }
    else {
        nr = nr * 2;
        solve_brut(poz + 1); /// pui 0
        nr++;
        solve_brut(poz + 1); /// pui 1
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:55:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf (fin,"%d%d\n",&n,&q);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~
snake_escaping.cpp:57:11: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     fgets (v , (1 << n) + 10 , fin);
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
snake_escaping.cpp:85:15: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         fgets (s + 1 , n + 10 , fin);
         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~

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