Submission #1028834

#	Time	Username	Problem	Language	Result	Execution time	Memory
1028834		hasan2006	Martian DNA (BOI18_dna)	C++17	100 / 100	172 ms	149692 KiB

dna

#include <bits/stdc++.h>

using namespace std;

#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define se second
#define fi first
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"


const int N = 2e5 + 9 , mod = 1e9 + 7;
ll  dp[N] , a[N] ,c[N] ,  b[N] , p[N];
deque<int>d[N];
void solve()
{
    ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
    cin>>n>>k>>m;
    for(i = 1; i <= n; i++){
        cin>>a[i];
    }
    for(i = 1; i <= m; i++){
        cin>>l>>r;
        b[l] = r;
    }
    set<ll>st , st1;
    for(i = 1; i <= n; i++){
        d[a[i]].pb(i);
        st.insert(i);
        if(d[a[i]].size() > b[a[i]]){
            st.erase(d[a[i]].front());
            d[a[i]].pop_front();
        }
        if(d[a[i]].size() == b[a[i]] && b[a[i]])
            st1.insert(a[i]);
        if(st1.size() == m)
            mn = min(mn , i - *st.begin() + 1);
    }
    if(mn == 1e18){
        cout<<"impossible";
        return;
    }
    cout<<mn<<"\n";
}


int main(){
    TL;
    /*#ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif*/
    int t = 1;
//    cin>>t;
    while(t--)
     {
        solve();
     }
}
// Author : حسن

Compilation message (stderr)

dna.cpp: In function 'void solve()':
dna.cpp:39:27: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   39 |         if(d[a[i]].size() > b[a[i]]){
      |            ~~~~~~~~~~~~~~~^~~~~~~~~
dna.cpp:43:27: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   43 |         if(d[a[i]].size() == b[a[i]] && b[a[i]])
      |            ~~~~~~~~~~~~~~~^~~~~~~~~~
dna.cpp:45:23: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   45 |         if(st1.size() == m)
      |            ~~~~~~~~~~~^~~~
dna.cpp:26:12: warning: unused variable 'q' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |            ^
dna.cpp:26:20: warning: unused variable 'j' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                    ^
dna.cpp:26:30: warning: unused variable 'x' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                              ^
dna.cpp:26:34: warning: unused variable 'y' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                  ^
dna.cpp:26:38: warning: unused variable 's' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                      ^
dna.cpp:26:46: warning: unused variable 'f' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                              ^
dna.cpp:26:69: warning: unused variable 'mx' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                                                     ^~

• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 28 / 28
• Subtask 4: 32 / 32