이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "paint.h"
#include <bits/stdc++.h>
#define fi first
#define se second
#define ll long long
#define dl double long
using namespace std;
int t[100100];
vector < int > v[100100];
int minimumInstructions( int N, int M, int K, vector<int> C, vector<int> A, vector<vector<int>> B)
{
for( int i = 0; i < M; i++ ){
for( int j = 0; j < A[i]; j++ ){
int x = B[i][j];
v[x].push_back(i);
}
}
vector < int > len;
vector < int > d(M , 1e9);
vector < pair < int , int > > dd(M , make_pair(1e9 , 0));
int G = 0;
for( int i = N - 1; i >= 0; i-- ){
for( auto x : v[C[i]] ){
int y = x + 1;
if( y >= M )y -= M;
if( dd[y].fi != 1e9 && dd[y].se == G ){
d[x] = dd[y].fi;
}else d[x] = i;
if( d[x] - i + 1 >= M )len.push_back(i);
}
G += 1;
for( auto x : v[C[i]] ){
dd[x].fi = d[x];
dd[x].se = G;
}
}
sort( len.begin() , len.end() );
len.erase( unique( len.begin() , len.end() ) , len.end() );
int ans = 0 , st = -1;
for( int i = 0; i < (int)len.size(); i++ ){
int l = 0 , r = (int)len.size() - 1;
if( st == N - 1 )break;
while( l < r ){
int m = (l + r) / 2;
if( len[m + 1] > st + 1 )r = m;
else l = m + 1;
}
st = len[l] + M - 1;
t[len[l]] += 1;
t[len[l] + M] -= 1;
ans += 1;
}
for( int i = 0; i < N; i++ ){
if( i )t[i] += t[i - 1];
if( t[i] == 0 ){
return -1;
}
}
return ans;
}
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