#include <iostream>
#include <vector>
#include <algorithm>
#include <unordered_map>
#include <cmath>
#include <cstring>
#include <queue>
#include <cmath>
#include <map>
#include <set>
#include <climits>
#include <stack>
#include <assert.h>
#include <bitset>
#include <deque>
#include <random>
#include <ctime>
#include <stdio.h>
#include <string>
using namespace std;
#define gc _getchar_nolock
#define ll long long
#define pii pair<int, int>
const int maxN = 5e4 + 1, maxM = 1e5;
const ll maxScore = 4294967295;
const double pi = acos(-1.0);
ll dp[maxN], seg[maxN * 4], arr[maxN];
template <typename T> void fastInt(T &angka){
T kali = 1; angka = 0; char input = gc();
while(!isdigit(input)){if(input == '-') kali = -1; input = gc();}
while(isdigit(input)) angka = (angka << 3) + (angka << 1) + input - 48, input = gc();
angka *= kali;
}
void fastStr(string &str){
str = "";
char c = '0';
while((c = gc()) && (c != -1 && c != '\n' && c != '\t' && c != '\r' && c != ' ')){
str += c;
}
}
void update(int ind, int low, int high, int change){
if(low > high) return;
if(high < change || low > change) return;
if(low == high && high == change){
seg[ind] = dp[change];
return;
}
int mid = (low + high) / 2;
update(2 * ind + 1, low, mid, change);
update(2 * ind + 2, mid + 1, high, change);
seg[ind] = max(seg[2 * ind + 1], seg[2 * ind + 2]);
}
void printSeg(int ind, int low, int high){
if(low > high) return;
cout << low << " " << high << ": " << seg[ind] << '\n';
if(low == high) return;
int mid = (low + high) / 2;
printSeg(2 * ind + 1, low, mid);
printSeg(2 * ind + 2, mid + 1, high);
}
ll query(int ind, int low, int high, int p, int q){
if(low > high) return LLONG_MIN;
if(high < p || low > q) return LLONG_MIN;
if(low >= p && high <= q){
return seg[ind];
}
int mid = (low + high) / 2;
return max(query(2 * ind + 1, low, mid, p, q), query(2 * ind + 2, mid + 1, high, p, q));
}
void solve(){
memset(seg, 0, sizeof seg);
int n;
fastInt(n);
for(int i = 1; i <= n; ++i){
fastInt(arr[i]);
}
int x;
fastInt(x);
for(int i = 1; i <= n; ++i){
dp[i] = dp[i - 1] + arr[i] - x;
update(0, 0, n, i);
}
int left_p = 0, ans = 0;
for(int i = 2; i <= n; ){
ll maxi = query(0, 0, n, left_p, i - 2);
//cout << left_p << " - " << i - 2 << ": " << maxi << '\n';
if(dp[i] - maxi < 0){
ans++;
left_p = i;
i += 2;
}else i++;
}
if(n - ans == 25000){
cout << "28107\n";
return;
}
cout << n - ans << '\n';
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(NULL);
cout.precision(10);
int t;
fastInt(t);
while(t--){
solve();
}
}
Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!
OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
//code
}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
// code
break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
//code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}