#include <bits/stdc++.h>
using namespace std;
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t, n, s, sum, op;
cin >> t;
vector<int> a;
vector<int> lasti;
vector<bool> k;
while (t--){
cin >> n;
a.resize(n);
k.assign(n+1, true);
k[0] = false;
s = 0
for (int i=0; i<n; i++){
cin >> a[i];
s += a[i];
}
s /= 2;
lasti.assign(s + 1, -1);
for (int i=0; i<n; i++){
cin >> a[i];
for (int j=s-a[i]; j>0; j--){
lasti[j + a[i]] = max(lasti[j + a[i]], lasti[j]);
}
if (a[i] <= s){
lasti[a[i]] = i;
}
sum = 0;
for (int j=i; j>=0; j--){
sum += a[j];
if (sum % 2 || lasti[sum / 2] < j){
k[i - j + 1] = false;
}
}
}
op = 0;
for (int x : k){
if (x){
op++;
}
}
cout << op << " ";
for (int i=1; i<n+1; i++){
if (k[i]){
cout << i << " ";
}
}
cout << "\n";
}
return 0;
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:17:10: error: expected ';' before 'for'
17 | s = 0
| ^
| ;
18 | for (int i=0; i<n; i++){
| ~~~
Main.cpp:18:19: error: 'i' was not declared in this scope
18 | for (int i=0; i<n; i++){
| ^