Submission #1225809

#	Time	Username	Problem	Language	Result	Execution time	Memory
1225809		paskalisapo	Painting Walls (APIO20_paint)	C++20	Compilation error	0 ms	0 KiB

paint

#include "paint.h"

#include <vector>

int minimumInstructions(
    int N, int M, int K, std::vector<int> C,
    std::vector<int> A, std::vector<std::vector<int>> B) {
    
    vector<int> colourlike(K , -1);
    for(int i = 0 ;i < M ; i++) { 
        for(auto &x : B[i]) {
            colourlike[x] = i;
        }
    }

    int index = 0;
    int instr = 0;
    while(index < N) {
        if(colourlike[C[index]] == -1) {
            return -1;
        }
        int start = colourlike[C[index]];
        int cur = start + 1;
        index++;
        while(cur <= start + M && index < N) {
            if(colourlike[C[index]] != cur) {
                return -1;
            }
            index++;
            cur++;
        }
        instr++;
    }
  return instr;
}

Compilation message (stderr)

paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:9:5: error: 'vector' was not declared in this scope
    9 |     vector<int> colourlike(K , -1);
      |     ^~~~~~
paint.cpp:9:5: note: suggested alternatives:
In file included from /usr/include/c++/11/vector:67,
                 from paint.h:1,
                 from paint.cpp:1:
/usr/include/c++/11/bits/stl_vector.h:389:11: note:   'std::vector'
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
In file included from paint.h:1,
                 from paint.cpp:1:
/usr/include/c++/11/vector:86:13: note:   'std::pmr::vector'
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
paint.cpp:9:12: error: expected primary-expression before 'int'
    9 |     vector<int> colourlike(K , -1);
      |            ^~~
paint.cpp:12:13: error: 'colourlike' was not declared in this scope
   12 |             colourlike[x] = i;
      |             ^~~~~~~~~~
paint.cpp:19:12: error: 'colourlike' was not declared in this scope
   19 |         if(colourlike[C[index]] == -1) {
      |            ^~~~~~~~~~
paint.cpp:22:21: error: 'colourlike' was not declared in this scope
   22 |         int start = colourlike[C[index]];
      |                     ^~~~~~~~~~