func_code_string: #include <bits/stdc++.h>   using namespace std;   int a[100009];   int n;   int main() {     scanf( %d , &n);     for (int i = 0; i < n; i++) scanf( %d , &a[i]);     long long res = 0;     for (int i = 0; i < n;) {       int j = i + 1;       while (j < n && a[j] == a[i]) j++;       long long sz = j - i;       res += sz * (sz + 1) / 2;       i = j;     }     cout << res << endl;   }   