func_code_string: #include <bits/stdc++.h>   using namespace std;   int a[100005], n, sum = 0, tp = 0, ans = -(1 << 30);   int main() {     scanf( %d , &n);     for (register int i = 1; i <= n; ++i) scanf( %d , &a[i]), sum += a[i];     for (register int i = 1; i <= n; ++i)       if (tp + a[i] < 0)         tp = 0;       else         ans = max(ans, tp + a[i]), tp += a[i];     ans = max(0, ans);     printf( %d n , max(ans * 2 - sum, sum));   }   