Submission #1200110

#TimeUsernameProblemLanguageResultExecution timeMemory
1200110thieunguyenhuySafety (NOI18_safety)C++20
13 / 100
2093 ms1604 KiB
#include <bits/stdc++.h> using namespace std; #define POPCOUNT(n) (__builtin_popcountll((n))) #define CLZ(n) (__builtin_clzll((n))) #define CTZ(n) (__builtin_ctzll((n))) #define LOG(n) (63 - __builtin_clzll((n))) #define BIT(n, i) (((n) >> (i)) & 1ll) #define MASK(i) (1ll << (i)) #define FLIP(n, i) ((n) ^ (1ll << (i))) #define ON(n, i) ((n) | MASK(i)) #define OFF(n, i) ((n) & ~MASK(i)) #define Int __int128 #define fi first #define se second typedef long long ll; typedef unsigned long long ull; typedef long double ld; typedef pair<int, int> pii; typedef pair<long long, long long> pll; typedef pair<long long, int> pli; typedef pair<int, long long> pil; typedef vector<pair<int, int>> vii; typedef vector<pair<long long, long long>> vll; typedef vector<pair<long long, int>> vli; typedef vector<pair<int, long long>> vil; template <class T1, class T2> bool maximize(T1 &x, T2 y) { if (x < y) { x = y; return true; } return false; } template <class T1, class T2> bool minimize(T1 &x, T2 y) { if (x > y) { x = y; return true; } return false; } template <class T> void remove_duplicate(vector<T> &ve) { sort (ve.begin(), ve.end()); ve.resize(unique(ve.begin(), ve.end()) - ve.begin()); } mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count()); template <class T1, class T2> T1 random(T1 l, T2 r) { return uniform_int_distribution<T1>(l, r)(rng); } template <class T> T random(T r) { return rng() % r; } const int N = 500 + 5; const int MOD = 1e9 + 7; const int inf = 1e9; const long long INF = 1e18; int n, h; int a[N], dp[N][N]; signed main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cin >> n >> h; for (int i = 1; i <= n; ++i) { cin >> a[i]; } int maxValue = *max_element(a + 1, a + 1 + n); for (int x = 0; x <= maxValue; ++x) dp[1][x] = abs(a[1] - x); for (int i = 2; i <= n; ++i) { for (int x = 0; x <= maxValue; ++x) { dp[i][x] = inf; for (int y = max(0, x - h); y <= min(maxValue, x + h); ++y) minimize(dp[i][x], dp[i - 1][y] + abs(a[i] - x)); } } int ans = inf; for (int x = 0; x <= maxValue; ++x) minimize(ans, dp[n][x]); cout << ans; return 0; }
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