Submission #398813

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
398813	2021-05-04 20:32:11	nikatamliani	Selling RNA Strands (JOI16_selling_rna)	C++14	100 / 100	403 ms	291656 KiB

selling_rna

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#include "bits/stdc++.h"
using namespace std;
const int N = 2e5+10, p = 37, MOD = 1e9+7;
string s[N];
int n, m, P[N];
bool check(const string &a, const string &b) { // a >= b ? true : false
  int mini = min((int)a.size(), (int)b.size());
  for(int i = 0; i < mini; ++i) {
    if(a[i] != b[i]) {
      return a[i] > b[i];
    }
  }
  return mini == (int)b.size();
}
bool is_prefix(const string &a, const string &b) {
  if((int)a.size() > (int)b.size()) {
    return false;
  }
  for(int i = 0; i < (int)a.size(); ++i) {
    if(a[i] != b[i]) {
      return false;
    }
  }
  return true;
}
int find_first(const string &p) {
  int l = 1, r = n, pos = n+1;
  while(r >= l) {
    int m = l + r >> 1;
    if(check(s[m], p)) {
 
 
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Compilation message (stderr)

selling_rna.cpp: In function 'int find_first(const string&)':
selling_rna.cpp:29:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   29 |   int m = l + r >> 1;
      |           ~~^~~
selling_rna.cpp: In function 'int find_last(int, const string&)':
selling_rna.cpp:42:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   42 |   int m = l + r >> 1;
      |           ~~^~~
selling_rna.cpp: In function 'int count(const std::vector<int>&, int)':
selling_rna.cpp:56:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   56 |   int m = l + r >> 1;
      |           ~~^~~
selling_rna.cpp: In function 'void add(const string&, int)':
selling_rna.cpp:75:22: warning: array subscript has type 'char' [-Wchar-subscripts]
   75 |   if(nxt[cur][id[s[i]]] == 0) {
      |                      ^
selling_rna.cpp:76:20: warning: array subscript has type 'char' [-Wchar-subscripts]
   76 |    nxt[cur][id[s[i]]] = ++tries;
      |                    ^
selling_rna.cpp:78:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   78 |   cur = nxt[cur][id[s[i]]];
      |                         ^
selling_rna.cpp: In function 'int get(const string&, int, int)':
selling_rna.cpp:85:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   85 |   cur = nxt[cur][id[s[i]]];
      |                         ^
selling_rna.cpp: In function 'int main()':
selling_rna.cpp:101:7: warning: unused variable 'hash' [-Wunused-variable]
  101 |   int hash = 0;
      |       ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 40 / 40