#include <bits/stdc++.h>
using namespace std;
#define fastio()                      \
    ios_base::sync_with_stdio(false); \
    cin.tie(NULL);                    \
    cout.tie(NULL)
#define int long long
#define vi vector<int>
#define vvi vector<vi>
#define pii pair<int, int>
#define vii vector<pii>
#define pb push_back
#define eb emplace_back
#define ppb pop_back
#define fori(i, a) for (int i = n - 1; i >= 0; i--)
#define rep(i, a, b) for (int i = a; i < b; i++)
#define tr(it, a) for (auto it = a.begin(); it != a.end(); it++) // iterator
#define ln "\n"
#define ff first
#define ss second
#define setBits(x) builtin_popcount(x)
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
const int M = 1e9 + 7;
const int N = 1e5 + 2;

void solve()
{
    int n;
    cin >> n;
    int arr[n];
    int cnt = 0;
    int temp = 0;
    for (int i = 0; i < n; i++)
    {
        cin >> arr[i];
    }
    // int cnt = 0;
    // int temp = 0;
    // int t1 = 0;
    for (int i = 0; i < n; i++)
    {
        temp += arr[i];
        if (temp < 0)
        {
            cnt++;
            temp = 0;
        }
    }
    cout << cnt << "\n";
}

int32_t main()
{
#ifndef ONLINE_JUDGE
    // freopen("input.txt", "r", stdin);
    freopen("error.txt", "w", stderr);
    // freopen("output.txt", "w", stdout);
#endif
    fastio();
    int t = 1;
    // cin >> t;
    while (t--)
    {
        solve();
    }
#ifndef ONLINE_JUDGE
    cerr << "time taken : " << (float)clock() / CLOCKS_PER_SEC << " secs" << endl;
#endif
}
by

C++ Online Compiler

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!

Read inputs from stdin

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;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

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.

2. Switch:

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;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

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 
}

5. Do-While:

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);

Functions

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.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}