#include <bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define fastio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define ll long long int
#define mod 1000000007
#define inf 1e18
#define endl "\n"
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define ff first
#define ss second
#define PI 3.141592653589793238462
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
#define rep(i, init, n) for (int i = init; i < (int)n; i++)
#define rev(i, n, init) for (int i = (int)n; i >= init; i--)
#define V vector<int>
#define VV vector<V>
#define Vll vector<ll>
#define VVll vector<Vll>
#define pii pair<int,int>
#define pll pair<ll,ll>
#define Vpii vector<pii>
#define VVpii vector<Vpii>
#define Vpll vector<pll>
#define VVpll vector<Vpll>
template <typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; // find_by_order, order_of_key
#ifndef Anurag203
#define debug(x) cerr << #x <<" "; _print(x); cerr << endl;
#else
#define debug(x)
#endif
void _print(ll t) {cerr << t;}
void _print(int t) {cerr << t;}
void _print(string t) {cerr << t;}
void _print(char t) {cerr << t;}
void _print(double t) {cerr << t;}
template <class T, class vv> void _print(pair <T, vv> p);
template <class T> void _print(vector <T> v);
template <class T> void _print(set <T> v);
template <class T, class vv> void _print(map <T, vv> v);
template <class T> void _print(multiset <T> v);
template <class T> void _print(ordered_set <T> v);
template <class T, class vv> void _print(pair <T, vv> p) {cerr << "{"; _print(p.ff); cerr << ","; _print(p.ss); cerr << "}";}
template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class vv> void _print(map <T, vv> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(ordered_set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
/*----------------------------------------------------------------------------------------------------------------------------------------------------*/
ll gcd(ll a, ll b) {if (b > a) {return gcd(b, a);} if (b == 0) {return a;} return gcd(b, a % b);}
ll powe(ll x,ll y, ll p=mod){ll res = 1; x = x % p;while (y > 0){ if (y & 1) res = (res * x) % p;y = y >> 1; x = (x * x) % p;} return res;}
bool revsort(ll a, ll b) {return a > b;}
ll inverse_modulo(ll a, ll p = mod) {return powe(a, p - 2, p);}
Vll fact; void fill_fact(ll p = mod) {fact.resize(200005, 1); rep(i, 1, 200005) { fact[i] = (fact[i - 1] * i) % p; }}
ll C(ll n,ll r,ll p=mod) {return ((fact[n]*inverse_modulo(fact[n-r]))%mod*inverse_modulo(fact[r]))%mod;}
void google(int t) {cout << "Case #" << t << ": ";}
Vll spf; void sieve(ll n = 200005) {spf.resize(n + 1, 1); ll i, j; for (ll i = 2; i <= n; i++) {if (spf[i] == 1) {spf[i] = i; for (j = i * i; j <= n; j += i){if (spf[j] == 1) spf[j] = i;}}}}
bool is_prime(ll x) {return (spf[x] == x);}
Vpll prime_factors(ll x) {Vpll ans; while (x != 1) {ll a = spf[x], cnt = 0; while (x % a == 0) x /= a, cnt++; ans.pb({a, cnt});}return ans;}
/*----------------------------------------------------------------------------------------------------------------------------------------------------*/
void solve()
{
int n,m;cin>>n>>m;
V a(n+1);
rep(i,1,n+1) cin>>a[i];
a.pb(0);n++;
V dp(n + 1, 0);
dp[0] = 0;
rep(i, 1, n + 1)
{
rev(j, i - 1, 0)
{
if ((j * m) - a[j] >= 0 && (m * i) - a[i] >= (j * m) - a[j])
{
dp[i] = max(dp[i], dp[j] + 1);
}
}
}
cout << n - dp[n] << endl;
}
int main() {
#ifndef Anurag203
freopen("Error.txt", "w", stderr);
#endif
fastio();
// freopen("output.in", "r", stdin);
// freopen("output.out", "w", stdout);
int tt = 1;
// cin>>tt;
rep(ii, 1, tt + 1)
{
// google(ii);
solve();
}
return 0;
}
Compilation message
triusis.cpp: In function 'void sieve(long long int)':
triusis.cpp:66:62: warning: unused variable 'i' [-Wunused-variable]
66 | Vll spf; void sieve(ll n = 200005) {spf.resize(n + 1, 1); ll i, j; for (ll i = 2; i <= n; i++) {if (spf[i] == 1) {spf[i] = i; for (j = i * i; j <= n; j += i){if (spf[j] == 1) spf[j] = i;}}}}
| ^
triusis.cpp: In function 'int main()':
triusis.cpp:93:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
93 | freopen("Error.txt", "w", stderr);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
288 KB |
Output is correct |
20 |
Correct |
32 ms |
340 KB |
Output is correct |
21 |
Correct |
42 ms |
340 KB |
Output is correct |
22 |
Correct |
10 ms |
368 KB |
Output is correct |
23 |
Correct |
45 ms |
356 KB |
Output is correct |
24 |
Correct |
46 ms |
340 KB |
Output is correct |
25 |
Correct |
45 ms |
340 KB |
Output is correct |
26 |
Correct |
43 ms |
340 KB |
Output is correct |
27 |
Correct |
40 ms |
340 KB |
Output is correct |
28 |
Correct |
45 ms |
348 KB |
Output is correct |
29 |
Correct |
46 ms |
344 KB |
Output is correct |
30 |
Correct |
48 ms |
340 KB |
Output is correct |
31 |
Correct |
30 ms |
340 KB |
Output is correct |
32 |
Correct |
48 ms |
348 KB |
Output is correct |
33 |
Correct |
45 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
288 KB |
Output is correct |
4 |
Correct |
32 ms |
340 KB |
Output is correct |
5 |
Correct |
42 ms |
340 KB |
Output is correct |
6 |
Correct |
10 ms |
368 KB |
Output is correct |
7 |
Correct |
45 ms |
356 KB |
Output is correct |
8 |
Correct |
46 ms |
340 KB |
Output is correct |
9 |
Correct |
45 ms |
340 KB |
Output is correct |
10 |
Correct |
43 ms |
340 KB |
Output is correct |
11 |
Correct |
40 ms |
340 KB |
Output is correct |
12 |
Correct |
45 ms |
348 KB |
Output is correct |
13 |
Correct |
46 ms |
344 KB |
Output is correct |
14 |
Correct |
48 ms |
340 KB |
Output is correct |
15 |
Correct |
30 ms |
340 KB |
Output is correct |
16 |
Correct |
48 ms |
348 KB |
Output is correct |
17 |
Correct |
45 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
11 ms |
340 KB |
Output is correct |
35 |
Correct |
15 ms |
364 KB |
Output is correct |
36 |
Correct |
11 ms |
340 KB |
Output is correct |
37 |
Correct |
44 ms |
340 KB |
Output is correct |
38 |
Correct |
48 ms |
348 KB |
Output is correct |
39 |
Correct |
49 ms |
348 KB |
Output is correct |
40 |
Correct |
33 ms |
348 KB |
Output is correct |
41 |
Correct |
17 ms |
368 KB |
Output is correct |
42 |
Correct |
46 ms |
348 KB |
Output is correct |
43 |
Correct |
45 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
11 ms |
340 KB |
Output is correct |
2 |
Correct |
15 ms |
364 KB |
Output is correct |
3 |
Correct |
11 ms |
340 KB |
Output is correct |
4 |
Correct |
44 ms |
340 KB |
Output is correct |
5 |
Correct |
48 ms |
348 KB |
Output is correct |
6 |
Correct |
49 ms |
348 KB |
Output is correct |
7 |
Correct |
33 ms |
348 KB |
Output is correct |
8 |
Correct |
17 ms |
368 KB |
Output is correct |
9 |
Correct |
46 ms |
348 KB |
Output is correct |
10 |
Correct |
45 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
288 KB |
Output is correct |
14 |
Correct |
32 ms |
340 KB |
Output is correct |
15 |
Correct |
42 ms |
340 KB |
Output is correct |
16 |
Correct |
10 ms |
368 KB |
Output is correct |
17 |
Correct |
45 ms |
356 KB |
Output is correct |
18 |
Correct |
46 ms |
340 KB |
Output is correct |
19 |
Correct |
45 ms |
340 KB |
Output is correct |
20 |
Correct |
43 ms |
340 KB |
Output is correct |
21 |
Correct |
40 ms |
340 KB |
Output is correct |
22 |
Correct |
45 ms |
348 KB |
Output is correct |
23 |
Correct |
46 ms |
344 KB |
Output is correct |
24 |
Correct |
48 ms |
340 KB |
Output is correct |
25 |
Correct |
30 ms |
340 KB |
Output is correct |
26 |
Correct |
48 ms |
348 KB |
Output is correct |
27 |
Correct |
45 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
0 ms |
212 KB |
Output is correct |
38 |
Correct |
0 ms |
212 KB |
Output is correct |
39 |
Correct |
0 ms |
212 KB |
Output is correct |
40 |
Correct |
0 ms |
212 KB |
Output is correct |
41 |
Correct |
0 ms |
212 KB |
Output is correct |
42 |
Correct |
1 ms |
212 KB |
Output is correct |
43 |
Correct |
0 ms |
212 KB |
Output is correct |
44 |
Execution timed out |
1088 ms |
1876 KB |
Time limit exceeded |
45 |
Halted |
0 ms |
0 KB |
- |