#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define int long long
#define For(i, a, b) for (int i = (a); i <= (b); i++)
#define Ford(i, a, b) for (int i = (b); i >= (a); i --)
#define Rep(i, n) for (int i = 0; i < (n); ++i)
#define Repd(i, n) for (int i = (n) - 1; i >= 0; --i)
#define overload(_1, _2, _3, NAME, ...) NAME
#define FOR(...) overload(__VA_ARGS__, For, Rep)(__VA_ARGS__)
#define FORD(...) overload(__VA_ARGS__, Ford, Repd)(__VA_ARGS__)
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
void setupIO(){
#define name "Whisper"
//Phu Trong from Nguyen Tat Thanh High School for gifted student
srand(time(NULL));
cin.tie(nullptr)->sync_with_stdio(false); cout.tie(nullptr);
//freopen(name".inp", "r", stdin);
//freopen(name".out", "w", stdout);
cout << fixed << setprecision(10);
}
template <class X, class Y>
bool minimize(X &x, const Y &y){
X eps = 1e-9;
if (x > y + eps) {x = y; return 1;}
return 0;
}
template <class X, class Y>
bool maximize(X &x, const Y &y){
X eps = 1e-9;
if (x + eps < y) {x = y; return 1;}
return 0;
}
int nArr, Lim;
const int MAX = 2e5 + 5;
int A[MAX];
#define VALUE(x)(((x) * ((x) + 1)) >> 1LL)
int upd[MAX];
void Whisper(){
cin >> nArr >> Lim;
for (int i = 1; i <= nArr; ++i) cin >> A[i], A[i] -= i * Lim;
//if A(i) > 0 we need to change A(i)'s height
vector<int> next;
for (int i = nArr; i >= 1; --i){
if (A[i] > 0) continue;
auto it = upper_bound(next.begin(), next.end(), A[i]);
if (it == next.end()){
next.push_back(A[i]);
}
}
cout << nArr - (int)next.size();
}
signed main(){
setupIO();
int Test = 1;
// cin >> Test;
for ( int i = 1 ; i <= Test ; i++ ){
Whisper();
if (i < Test) cout << '\n';
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |