Submission #104701

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
104701	2019-04-09 00:56:32	Shtef	Dijamant (COI16_dijament)	C++14	0 / 100	3 ms	384 KiB

dijament

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#include <iostream>
using namespace std;
typedef long long ll;
string s;
int n, cnt1[100005], cnt2[100005];
ll brojpalin(){
  ll ret = 0;
  int l = 0, r = -1;
  for(int i = 0 ; i < n ; ++i){
    int k = (i > r ? 1 : min(cnt1[l + r - i], r - i + 1));
    while(i - k >= 0 && i + k < n && s[i - k] == s[i + k]){
      k++;
    }
    cnt1[i] = k--;
    if(i + k > r){
      l = i - k;
      r = i + k;
    }
    ret += k + 1;
    int x = i - k + 1, y = i + k + 1;
  }
  l = 0;
  r = -1;
  for(int i = 0 ; i < n ; ++i){
    int k = (i > r ? 0 : min(cnt1[l + r - i + 1], r - i + 1));
    while(i - k - 1 >= 0 && i + k < n && s[i - k - 1] == s[i + k]){
 
 
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Compilation message (stderr)

dijament.cpp: In function 'll brojpalin()':
dijament.cpp:24:7: warning: unused variable 'x' [-Wunused-variable]
   int x = i - k + 1, y = i + k + 1;
       ^
dijament.cpp:24:22: warning: unused variable 'y' [-Wunused-variable]
   int x = i - k + 1, y = i + k + 1;
                      ^

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 29
• Subtask 4: 0 / 44