This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ff first
#define ss second
#define pb push_back
#define SZ(x) ((int)(x).size())
#define all(x) x.begin(), x.end()
#define debug(x) cout << #x << ": " << x << " "
#define nl cout << "\n"
#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define per(i, a, b) for(int i = (a); i >= (b); i--)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int minimumInstructions(int N, int M, int K, vector<int> C, vector<int> A, vector<vector<int>> B){
vector<int> pos[K + 1];
rep(i, 0, N) pos[C[i]].pb(i);
vector<int> workers[N + 1];
rep(i, 0, M){
for(int col : B[i]){
for(int p : pos[col]){
workers[p].pb(i);
}
}
}
vector<bool> v(N + 1, false);
vector<pii> work[N + 1];
for(int x : workers[0]){
work[0].pb({x, 0});
}
rep(y, 1, N + 1){
for(auto [x, old_y] : work[y - 1]){
int i = (x + 1) % M, l = y - old_y, j = y;
if(l == M){
v[old_y] = true; continue;
}
auto it = lower_bound(all(B[i]), C[j]);
if(it != B[i].end() && *it == C[j]){
work[y].pb({i, old_y});
}
}
work[y - 1].clear();
if(y + M - 1 < N){
for(int x : workers[y]){
work[y].pb({x, y});
}
}
}
rep(i, 0, N){
if(v[i]){
cout << i << " " << i + M - 1 << "\n";
}
}
if(!v[0]) return -1;
vector<int> dp(N, INT_MAX);
dp[0] = 1;
multiset<int> s, ms[N + 1];
rep(i, 0, N){
for(int x : ms[i]){
s.erase(s.find(x));
}
if(SZ(s)){
dp[i] = *s.begin() + 1;
}
if(dp[i] == INT_MAX) return -1;
if(v[i]){
s.insert(dp[i]);
int r = min(N - 1, i + M) + 1;
ms[r].insert(dp[i]);
if(i + M - 1 >= N - 1) return dp[i];
}
}
return -1;
}
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:34:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
34 | for(auto [x, old_y] : work[y - 1]){
| ^
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