func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, a[100010];   int main() {     cin >> n;     for (int i = 0; i < n; i++) cin >> a[i];     unsigned long long ans = 0;     for (int i = 0; i < n; i++) {       unsigned long long j, k = 0;       for (j = i; j < n; j++) {         if (a[i] != a[j]) break;         k++;       }       ans += (k * (k + 1)) / 2;       i = j - 1;     }     cout << ans << endl;     return 0;   }   