Submission #322618

#	Time	Username	Problem	Language	Result	Execution time	Memory
322618		mglstew	Type Printer (IOI08_printer)	C++17	100 / 100	161 ms	98668 KiB

printer

#include <bits/stdc++.h>
#define MOD 1000000007
#define ff first
#define ss second
#define pb push_back
#define ll long long
#define N 100005
#define ccin cin >>
#define ccout cout <<

using namespace std;

int ans = 0;

struct Node{
  	int last;
  	int is;
  	Node *next[26];
  	Node(){
    	last = false;
    	is = false;
    	for(int i = 0; i < 26; i++){
    		next[i] = NULL;
    	}
  	}
} *root = new Node;

void insert(Node *root, string s){
  	for(int i = 0; i < s.size(); i++){
      	int index = s[i] - 'a';
      	if(root -> next[index] == NULL){
       		root -> next[index] = new Node;
        	ans++;
      	}
      	root = root -> next[index];
  	}
  	root -> last = 1;
}

void search(Node *root, string s){
    for(int i = 0; i < s.size(); i++){
      	int index = s[i] - 'a';
      	root = root -> next[index];
      	root -> is = 1;
    }
    root -> last = 1;
}
void Print(Node *root){
    for(int i = 0; i < 26; i++){
      	if(root -> next[i] != NULL && !root -> next[i] -> is){
            ccout char(i + 'a')<< '\n';
            if(root -> next[i] -> last){
            	ccout "P" << '\n';
            }
            Print(root -> next[i]);
            ccout "-" << '\n';
      	}
    }
}

int n;
string st;

int main()
{
  	ios_base::sync_with_stdio(false);
  	cin.tie(NULL);
  	cout.tie(NULL);
  	ccin n;
  	for(int i = 1; i <= n; i++) {
      	string s;
      	ccin s;
      	insert(root, s);
      	if(s.size() > st.size()) st = s;
  	}
  	search(root, st);
  	ccout ans * 2 + n - st.size() << '\n';
  	Print(root);
  	for(int i = 0; i < st.size(); i++){
      	ccout st[i] << '\n';
      	Print(root -> next[st[i] - 'a']);
      	if(root -> next[st[i] - 'a'] -> last){
      		ccout "P" << '\n';
      	}
      	root = root -> next[st[i] - 'a'];
  }
}

Compilation message (stderr)

printer.cpp: In function 'void insert(Node*, std::string)':
printer.cpp:29:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |    for(int i = 0; i < s.size(); i++){
      |                   ~~^~~~~~~~~~
printer.cpp: In function 'void search(Node*, std::string)':
printer.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     for(int i = 0; i < s.size(); i++){
      |                    ~~^~~~~~~~~~
printer.cpp: In function 'int main()':
printer.cpp:79:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |    for(int i = 0; i < st.size(); i++){
      |                   ~~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10