| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1105663 |
2024-10-27T08:56:36 Z |
cpptowin |
Safety (NOI18_safety) |
C++17 |
|
2000 ms |
88000 KB |
#include <bits/stdc++.h>
#define fo(i, d, c) for (int i = d; i <= c; i++)
#define fod(i, c, d) for (int i = c; i >= d; i--)
#define maxn 1000010
#define N 5010
#define fi first
#define se second
#define pb emplace_back
#define en cout << "\n";
#define bitcount(x) __builtin_popcountll(x)
#define pii pair<int, int>
#define vii vector<pii>
#define lb(x) x & -x
#define bit(i, j) ((i >> j) & 1)
#define offbit(i, j) (i ^ (1LL << j))
#define onbit(i, j) (i | (1LL << j))
#define vi vector<int>
#define all(x) x.begin(), x.end()
#define ss(x) (int)x.size()
#define UNIQUE(v) v.erase(unique(all(v)),v.end())
template <typename T1, typename T2>
bool minimize(T1 &a, T2 b)
{
if (a > b)
{
a = b;
return true;
}
return false;
}
template <typename T1, typename T2>
bool maximize(T1 &a, T2 b)
{
if (a < b)
{
a = b;
return true;
}
return false;
}
using namespace std;
const int nsqrt = 450;
const int mod = 1e9 + 7;
void add(int &x, int k)
{
x += k;
x %= mod;
if(x < 0) x += mod;
}
void del(int &x, int k)
{
x -= k;
x %= mod;
if(x < 0) x += mod;
}
struct SegmentTree
{
vector<int> st;
int n;
/// real n
SegmentTree(int _n = 0) : n(_n)
{
st.resize(4 * n + 10,0);
}
void resize(int _n)
{
n = _n;
st.resize(4 * n + 10,0);
}
void update(int id, int l, int r, int x, int val)
{
if (x > r or x < l)
return;
if (l == r)
{
st[id] += val;
return;
}
int mid = (l + r) >> 1;
update(id << 1, l, mid, x, val);
update(id << 1 | 1, mid + 1, r, x, val);
st[id] = min(st[id << 1], st[id << 1 | 1]);
}
void assign(int id, int l, int r, int x, int val)
{
if (x > r or x < l)
return;
if (l == r)
{
st[id] = val;
return;
}
int mid = (l + r) >> 1;
assign(id << 1, l, mid, x, val);
assign(id << 1 | 1, mid + 1, r, x, val);
st[id] = min(st[id << 1], st[id << 1 | 1]);
}
int get(int id, int l, int r, int u, int v)
{
if (l > v || u > r)
return 1e9;
if (u <= l && r <= v)
return st[id];
int mid = (l + r) >> 1;
return min(get(id << 1, l, mid, u, v), get(id << 1 | 1, mid + 1, r, u, v));
}
int walkright(int id, int l, int r, int x, int val)
{
if (st[id] >= val)
return -1;
if (r < x)
return -1;
if (l == r)
return l;
int ans = -1;
int mid = (l + r) >> 1;
if (st[id << 1] < val)
ans = walkright(id << 1, l, mid, x, val);
if (ans == -1)
ans = walkright(id << 1 | 1, mid + 1, r, x, val);
return ans;
}
int walkleft(int id, int l, int r, int x, int val)
{
if (st[id] >= val)
return -1;
if (x < l)
return -1;
if (l == r)
return l;
int ans = -1;
int mid = (l + r) >> 1;
if (st[id << 1 | 1] < val)
ans = walkleft(id << 1 | 1, mid + 1, r, x, val);
if (ans == -1)
ans = walkleft(id << 1, l, mid, x, val);
return ans;
}
int get(int l, int r)
{
return get(1, 1, n, l, r);
}
void update(int x, int val)
{
update(1, 1, n, x, val);
}
void assign(int x, int val)
{
assign(1, 1, n, x, val);
}
int walkleft(int x,int val)
{
return walkleft(1,1,n,x,val);
}
int walkright(int x,int val)
{
return walkright(1,1,n,x,val);
}
};
int n,a[maxn],f[N][N],lim;
main()
{
#define name "TASK"
if (fopen(name ".inp", "r"))
{
freopen(name ".inp", "r", stdin);
freopen(name ".out", "w", stdout);
}
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> n >> lim;
fo(i,1,n) cin >> a[i];
fo(i,1,n)
{
SegmentTree st(5050);
fo(j,0,5000) st.assign(j,f[i - 1][j]);
fo(j,0,5000) f[i][j] = st.get(max(j - lim,0),min(5000,j + lim)) + abs(j - a[i]);
}
int ans = 1e9;
fo(i,0,5000) minimize(ans,f[n][i]);
cout << ans;
}
Compilation message
safety.cpp:161:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
161 | main()
| ^~~~
safety.cpp: In function 'int main()':
safety.cpp:166:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
166 | freopen(name ".inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
safety.cpp:167:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
167 | freopen(name ".out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
4688 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4860 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4688 KB |
Output is correct |
| 3 |
Correct |
8 ms |
4860 KB |
Output is correct |
| 4 |
Correct |
8 ms |
4804 KB |
Output is correct |
| 5 |
Incorrect |
8 ms |
4680 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
5 ms |
4688 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
2037 ms |
88000 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
4688 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
4688 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
4688 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
4688 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
4688 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
