#include "paint.h"
#include <bits/stdc++.h>
using namespace std;
#define all(a) begin(a),end(a)
#define sz(a) (int)a.size()
#define pb push_back
const int mxN = (int)2e4+10;
const int mxM = (int)2e3+10;
int n, m, k;
bool work[mxN];
vector<int> c, a;
set<int> b[mxN];
bool has[mxM][mxN];
//has[x][y] = if contractor x contains the color used in cell y
bool check(int i){
for(int x = 0; x < m; st++){
if(i+m-1-x<0){
if(has[m-1][i+m-1]) return true;
}
else if(x and has[m-1][i+m-1-x] and has[x-1][i+m-1]) return true;
}
return false;
}
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(auto u : C) c.pb(u);
for(auto u : A) a.pb(u);
for(int i = 0; i < m; i++)
for(auto u : B[i]) b[i].insert(u);
memset(has,0,sizeof(has));
for(int i = 0; i < m; i++)
for(int j = 0; j < n; j++)
has[i][j] = b[i].count(c[j]);
for(int i = 1; i < m; i++)
for(int j = 1; j < n; j++)
has[i][j] &= has[i-1][j-1];
memset(work,0,sizeof(work));
for(int i = 0; i <= n-m; i++) work[i] = check(i);
if(!work[0] or !work[n-m]) return -1;
int tot = 1;
for(int i = 0; i < n-m;){
int j;
for(j = i+m; j>=i; j--)
if(work[j]) break;
if(j==i) return -1;
tot++; i = j;
}
return tot;
}
Compilation message
paint.cpp: In function 'bool check(int)':
paint.cpp:21:24: error: 'st' was not declared in this scope; did you mean 'std'?
21 | for(int x = 0; x < m; st++){
| ^~
| std
