Submission #546397

#	Time	Username	Problem	Language	Result	Execution time	Memory
546397		Nguyennams1	Nivelle (COCI20_nivelle)	C++14	0 / 110	2 ms	340 KiB

nivelle

#include<bits/stdc++.h>
#define ll long long
#define lu unsigned long long 
#define f first
#define st second
#define pb push_back 
// #define v vector
using namespace std;

void solve(){
   int n,l=0,r=0,rs=0; cin>>n;
   string s; cin>>s;
   map<char,ll>mp,mu;
   set<pair<ll,char>>sp;
   for(int i=0;i<s.size();i++) mp[s[i]]--;
 //  sort(mp.begin(),mp.end());
   double mas=1e9,sum=1,mis=1e9,maz=-1e9,id1=0,id2=0,id3=0;
   int cnt=0;
   char g=s[0];
   for(int i=1;i<=s.size();i++) {
       if(s[i]==g && i!= s.size()) cnt++;
       else{
           g=s[i];
           if(cnt>maz) {maz=cnt;id1=i-1;id3=id2;}
           id2=i;
           cnt=0;
       }
   }
 //  cout<<maz<<endl;
  int id=0;
   for(auto x: mp){
       sp.insert({x.st,x.f});
   }
   for(auto x: sp){
     int id = s.find(x.st),sl_m=1;
       mu[s[id]]++;
       int i=0;
       for( i=id+1;i<s.size();i++){
           if(mu[s[i]]==0) sl_m++;
           if(double(double(sl_m)/double(i-id+1))<=mis){ mis=double(double(sl_m)/double(i-id+1));rs=i;}
        //   cout<<mis<<endl;
           mu[s[i]]++;
       }
       mu.clear();
       if(mis<mas) {
           mas=mis;
           l=id;r=rs;                                                                                                                                                       
       }
       mis=1e9;
   }
  // cout<<maz<<endl;
 // cout<<1.0/double(maz+1)<<endl;
   if(1.0/double(maz+1)>=mas)cout<<l+1<<" "<<r+1<<endl;
   else cout<<id3+1<<" "<<id1+1<<endl;
} 

int main(){
    ios_base::sync_with_stdio(false); cin.tie(NULL);
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif
    // int t; cin>>t;
    // while(t--) 
    solve();
    return 0;
}

Compilation message (stderr)

nivelle.cpp: In function 'void solve()':
nivelle.cpp:15:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |    for(int i=0;i<s.size();i++) mp[s[i]]--;
      |                ~^~~~~~~~~
nivelle.cpp:20:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |    for(int i=1;i<=s.size();i++) {
      |                ~^~~~~~~~~~
nivelle.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |        if(s[i]==g && i!= s.size()) cnt++;
      |                      ~^~~~~~~~~~~
nivelle.cpp:38:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |        for( i=id+1;i<s.size();i++){
      |                    ~^~~~~~~~~
nivelle.cpp:17:19: warning: unused variable 'sum' [-Wunused-variable]
   17 |    double mas=1e9,sum=1,mis=1e9,maz=-1e9,id1=0,id2=0,id3=0;
      |                   ^~~
nivelle.cpp:30:7: warning: unused variable 'id' [-Wunused-variable]
   30 |   int id=0;
      |       ^~
nivelle.cpp: In function 'int main()':
nivelle.cpp:60:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
nivelle.cpp:61:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 17
• Subtask 3: 0 / 13
• Subtask 4: 0 / 25
• Subtask 5: 0 / 48