Submission #36903

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
36903	2017-12-17 15:34:56	duca2k20	Match (CEOI16_match)	C++14	100 / 100	16 ms	17864 KiB

match

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#include <bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef long double llf;
const int mod = 1e9 + 7;
typedef pair<int, int> pi;
int n;
char str[100005], ans[100005];
int trie[100005][26], par[100005], pae[100005], idx[100005], piv;
vector<int> nv[100005];
bool solve(int s, int e){
  if(s == e) return true;
  auto l = lower_bound(nv[idx[s+1]].begin(), nv[idx[s+1]].end(), e);
  if(l == nv[idx[s+1]].begin()) return false;
  if(*--l > s){
    ans[s] = '(';
    ans[*l] = ')';
    return solve(s+1, *l) && solve(*l + 1, e);
  }
  else return false;
}
int main(){
  scanf("%s", str);
  n = strlen(str);
  int p = 0;
  for(int i=0; i<n; i++){
    if(p > 0 && pae[p] == str[i]){
 
 
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Compilation message (stderr)

match.cpp: In function 'int main()':
match.cpp:26:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", str);
                  ^

• Subtask 1: 10 / 10
• Subtask 2: 27 / 27
• Subtask 3: 63 / 63