Submission #442815

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
442815	2021-07-09 07:50:11	sstefanovic	Trobojnica (COCI19_trobojnica)	C++14	110 / 110	381 ms	8316 KiB

trobojnica

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<bits/stdc++.h>
using namespace std; 
const int MAXN = 2e5+10; 
int n; 
string s;
int slj[MAXN], boje[MAXN], cnt[3], solx[MAXN], soly[MAXN], solb[MAXN], pret[MAXN]; 
int main( ){
  cin >> n >> s; 
  for (int i=0; i<n; i++){
    boje[i]=s[i]-'1'; 
    cnt[boje[i]]++;
    slj[i] = (i+1)%n; 
    pret[i] = (i+n-1)%n; 
  }
  int x=0; 
  for (int i=0; i<n-3; i++){
    if (max (cnt[0], max(cnt[1], cnt[2])) == n-i){
      cout << "NE\n"; 
      return 0;
    }
    while (boje[x] == boje [slj[x]] or cnt[boje[x]] == 1 && cnt[boje[slj[x]]]){
      x = slj[x]; 
    }
    int y = slj [x]; 
    int nX = 3-boje[x]-boje[y]; 
    cnt[boje[x]]--; 
    cnt[boje[y]]--; 
    cnt[nX]++; 
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

trobojnica.cpp: In function 'int main()':
trobojnica.cpp:23:56: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   23 |   while (boje[x] == boje [slj[x]] or cnt[boje[x]] == 1 && cnt[boje[slj[x]]]){
      |                                      ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50