Language: C++

#include <bits/stdc++.h>
using namespace std;

///////////////////////////////////////////
const int INF = 1000000000;
using ll = long long int;
using vi = vector<int>;
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define rep(i,N) for(int i=0;i<N;i++)
//template <class  T>T max(T x,T y){if(x>y){return x;}else{return y;}}
template<class T>bool chmax(T &former, const T &b) { if (former<b) { former=b; return 1; } return 0; }
template<class T>bool chmin(T &former, const T &b) { if (b<former) { former=b; return 1; } return 0; }
///////////////////////////////////////////

ll num[200001];
int dp[200001];
ll pls;

//int rec(int x){
//   // cout<<x<<endl;
//    if(x<0)return pls;
//    if(dp[x]>=0)return dp[x];
//    dp[x] = min(abs(rec(x-1)),abs(rec(x-1)-2*num[x]));
//    return dp[x];
//}

int main(){
    memset(dp,-1, sizeof(dp));
    ll n;
    cin>>n;
    pls=0;
    cin>>num[0];
    pls=num[0];
    for(int i=1;i<n;i++){cin>>num[i];pls+=num[i];num[i]+=num[i-1];}
    ll ans=#include <bits/stdc++.h>
    using namespace std;

///////////////////////////////////////////
    const int INF = 1000000000;
    using ll = long long int;
    using vi = vector<int>;
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define rep(i,N) for(int i=0;i<N;i++)
//template <class  T>T max(T x,T y){if(x>y){return x;}else{return y;}}
    template<class T>bool chmax(T &former, const T &b) { if (former<b) { former=b; return 1; } return 0; }
    template<class T>bool chmin(T &former, const T &b) { if (b<former) { former=b; return 1; } return 0; }
///////////////////////////////////////////

    ll num[200001];
    int dp[200001];
    ll pls;

//int rec(int x){
//   // cout<<x<<endl;
//    if(x<0)return pls;
//    if(dp[x]>=0)return dp[x];
//    dp[x] = min(abs(rec(x-1)),abs(rec(x-1)-2*num[x]));
//    return dp[x];
//}

    int main(){
        memset(dp,-1, sizeof(dp));
        ll n;
        cin>>n;
        pls=0;
        cin>>num[0];
        pls=num[0];
        for(int i=1;i<n;i++){cin>>num[i];pls+=num[i];num[i]+=num[i-1];}
        ll ans=1000000000000000000LL;
        for (int i = 0; i < n-1; i++) {
            chmin(ans,abs(pls - 2*num[i]));
        }
        cout<<ans<<endl;
        return 0;
    };
    for (int i = 0; i < n-1; i++) {
        chmin(ans,abs(pls - 2*num[i]));
    }
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc:36:12: error: stray '#' in program
   36 |     ll ans=#include <bits/stdc++.h>
      |            ^
a.cc: In function 'int main()':
a.cc:36:13: error: 'include' was not declared in this scope
   36 |     ll ans=#include <bits/stdc++.h>
      |             ^~~~~~~
a.cc:36:22: error: 'bits' was not declared in this scope
   36 |     ll ans=#include <bits/stdc++.h>
      |                      ^~~~
a.cc:36:27: error: 'stdc' was not declared in this scope; did you mean 'std'?
   36 |     ll ans=#include <bits/stdc++.h>
      |                           ^~~~
      |                           std
a.cc:37:5: error: expected primary-expression before 'using'
   37 |     using namespace std;
      |     ^~~~~
a.cc:47:5: error: a template declaration cannot appear at block scope
   47 |     template<class T>bool chmax(T &former, const T &b) { if (former<b) { former=b; return 1; } return 0; }
      |     ^~~~~~~~
a.cc:63:13: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   63 |     int main(){
      |             ^~
a.cc:63:13: note: remove parentheses to default-initialize a variable
   63 |     int main(){
      |             ^~
      |             --
a.cc:63:13: note: or replace parentheses with braces to value-initialize a variable
a.cc:63:15: error: a function-definition is not allowed here before '{' token
   63 |     int main(){
      |               ^