이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#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[N + 1];
rep(i, 0, N) pos[C[i]].pb(i);
vector<int> work[N + 1];
rep(i, 0, M){
for(int col : B[i]){
for(int p : pos[col]){
work[p].pb(i);
}
}
}
vector<int> g[N];
rep(i, 0, N) sort(all(work[i]));
rep(i, 0, N - 1){
for(int x : work[i]){
auto it = lower_bound(all(work[i + 1]), (x + 1) % M);
if(it != work[i + 1].end()){
g[i].pb(x);
}
}
}
rep(i, 0, N){
sort(all(g[i]));
}
vector<pii> vt;
for(int x : g[0]) vt.pb({x, 0});
vector<bool> v(N, false);
rep(y, 1, N){
vector<pii> v2;
for(auto [x, old_y] : vt){
int l = y - old_y, x2 = (x + 1) % M;
if(l == M - 1){
v[old_y] = true; continue;
}
auto it = lower_bound(all(g[y]), x2);
if(it != g[y].end() && *it == x2){
v2.pb({x2, old_y});
}
}
swap(vt, v2);
if(y + M - 1 < N){
for(int x : g[y]) vt.pb({x, y});
}
}
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;
}
컴파일 시 표준 에러 (stderr) 메시지
paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:46:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
46 | for(auto [x, old_y] : vt){
| ^
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