oj.uz

Submission #737648

# Submission time Handle Problem Language Result Execution time Memory
737648 2023-05-07T13:12:27 Z Abrar_Al_Samit Painting Walls (APIO20_paint) C++17
0 / 100
 272 ms 524288 KB 
#include "paint.h"
#include <bits/stdc++.h>
using namespace std;



const int nax = 1e5;


vector<int> col_to_wall[nax], cand[nax];
vector<bitset<nax/2>>is(nax);
bool good[nax];
bool on[nax];

int minimumInstructions(
    int N, int M, int K, vector<int> C,
    vector<int> A, vector<vector<int>> B) {

    
    for(int i=0; i<N; ++i) {
        col_to_wall[C[i]].push_back(i);
    }

    for(int i=0; i<M; ++i) {
        for(int j=0; j<A[i]; ++j) {
            for(int x : col_to_wall[B[i][j]]) {
                cand[x].push_back(i);
                is[x][i] = 1;
            }
        }
    }

    int prev_succ = -1;
    for(int i=0; i<=N-M; ++i) {
        int cur_succ = -1;
        for(int j : cand[i]) {

            int pre_tag = (j-1+M)%M;
            bool yasss = true;


            if(pre_tag==prev_succ) {
                if(is[i+M-1][pre_tag]) {
                    cur_succ = j;
                    break;
                } else {
                    continue;
                }
            } else if(on[pre_tag]) {
                continue;
            }

            for(int l=1, cr=j+1; l<M; ++l, ++cr) {
                if(cr==M) cr = 0;
                yasss &= is[i+l][cr];

                if(!yasss) break;
            }
            if(yasss) {
                cur_succ = j;
                break;
            }
        }
        if(i) {
            for(int x : cand[i-1]) {
                if(x==prev_succ) break;
                on[x] = 0;
            }
        }
        for(int x : cand[i]) {
            if(x==cur_succ) break;
            on[x] = 1;
        }

        prev_succ = cur_succ;
        if(cur_succ!=-1) {
            good[i] = 1;
        }
    }


    if(!good[0]) return -1;
    int last = 0, pending = -1;

    int ans = 1;
    for(int i=1; i<N; ++i) {
        if(good[i]) {
            pending = i;
        }
        if(last+M==i) {
            if(pending==-1) return -1;
            last = pending;
            pending = -1;
            ++ans;
        }
    }
    return ans;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 272 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 272 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 272 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 272 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Runtime error 272 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -