Submission #1088800

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088800		modwwe	Painting Walls (APIO20_paint)	C++17	100 / 100	366 ms	261060 KiB

paint

#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
//#define int long long
//#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".ans","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
#define getchar_unlocked getchar

inline int scan()
{
    char c = getchar_unlocked();
    int x = 0;
    while(c<'0'||c>'9')
    {
        c=getchar_unlocked();
    }
    while(c>='0'&&c<='9')
    {
        x=(x<<1)+(x<<3)+c-'0';
        c=getchar_unlocked();
    }
    return x;
}

void phongbeo();
const int inf=1e9;
const int mod2=1e9+9;
const int  mod1=998244353;
struct icd
{
    long double a;
    int b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,b,c,d;
};
struct ie
{
    int a,b,c,d,e;

};

int n,m,s1,s2,s4,s3,sf,k,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,s33,dem3,dem4,l,r,mid,l2,r2,center;
int  i,s10,s12;
int kk;
int el=29;

vector<int> v[100001];
int dp[100001][633];
int a[100001];
bool b[100001];
int c[100001];
vector<int> v2;
int minimumInstructions(int _n, int _m, int _K, vector<int> _C, vector<int> _A, vector<vector<int>> _B)
{
    n=_n;
    m=_m;
    k=_K;
    for(int i=1; i<=n; i++)
        a[i]=_C[i-1];
    for(int j=1; j<=m; j++)
    {
        l=_A[j-1];
        for(int i=1; i<=l; i++)
        {
            r=_B[j-1][i-1];
            v[r].pb(j);
        }
    }
    for(int i=1; i<=n; i++)
    {
        l=0;
        dem=0;
        if(v[a[i]].size()==0)
        {
            return -1;
        }
        for(auto x:v[a[i]])
        {
            dp[i][dem]=i;
            if(i!=1)
            {
                s10=v[a[i-1]].size();
                while(l<s10&&v[a[i-1]][l]<x)
                {
                    l++;
                }
                if(l>=1)
                    if(v[a[i-1]][l-1]==x-1)
                        dp[i][dem]=min(dp[i][dem],dp[i-1][l-1]);
                s8=v[a[i-1]].size()-1;
                if(x==1&&v[a[i-1]].back()==m)dp[i][dem]=min(dp[i][dem],dp[i-1][s8]);
            }
            if(dp[i][dem]<=i-m+1)
                b[i-m+1]=1;
            dem++;
        }

    }
    s5=-m;
    s4=0;
    for(int i=1; i<=n; i++)
    {
        c[i]+=c[i-1];
        if(b[i])s5=i;
        if(c[i]==0&&s5+m<=i)
        {
            return -1;
        }
        else if(c[i]==0) s4++,c[i]=1,c[s5+m]--;
    }
    return s4;
}
/*
main()
{
cout<<minimumInstructions(8, 3, 5, {3, 3, 1, 3, 4, 4, 2, 2}, {3, 2, 2}, {{0, 1, 2}, {2, 3}, {3, 4}});
}*/

• Subtask 1: 12 / 12
• Subtask 2: 15 / 15
• Subtask 3: 13 / 13
• Subtask 4: 23 / 23
• Subtask 5: 37 / 37