Submission #482982

#	Time	Username	Problem	Language	Result	Execution time	Memory
482982		DJeniUp	Martian DNA (BOI18_dna)	C++17	0 / 100	88 ms	2584 KiB

dna

#pragma GCC Optimize("O3")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll>pairll;
typedef pair<ll,pairll>pairlll;
typedef pair<pairll,pairll>pairllll;
typedef long double ld;
typedef pair<ll,string>pairls;

#define INF 1000000000000007
#define MOD 1000000007
#define pb push_back
#define fr first
#define sc second
#define endl '\n'

ll n,k,d[200007],f[200007];

int main() {
    
    cin>>n>>k>>k;
    for(int i=1;i<=n;i++){
         cin>>d[i];
    }
    for(int i=1;i<=k;i++){
        ll x,y;
        cin>>x>>y;
        f[x]=y;
    }
    ll l=1;
    ll r=0;
    ll res=INF;
    for(int i=1;i<=n+1;i++){
        while(l<r && f[d[l]]<0){
            f[d[l]]++;
            l++;
        }
        r=i;
        f[d[r]]--;
        if(f[d[r]]==0 && r<=n)k--;
        if(k==0)res=min(res,r-l+1);
    }
    if(res==INF)cout<<"impossible"<<endl;
    else cout<<res<<endl;

}

Compilation message (stderr)

dna.cpp:1: warning: ignoring '#pragma GCC Optimize' [-Wunknown-pragmas]
    1 | #pragma GCC Optimize("O3")
      |

• Subtask 1: 0 / 16
• Subtask 2: 0 / 24
• Subtask 3: 0 / 28
• Subtask 4: 0 / 32