func_code_string: #include <bits/stdc++.h>   using namespace std;   void RI() {}   template <typename... T>   void RI(int& head, T&... tail) {     scanf( %d , &head);     RI(tail...);   }   template <typename T>   void _dump(const char* s, T&& head) {     cerr << s <<  =  << head << endl;   }   template <typename T, typename... Args>   void _dump(const char* s, T&& head, Args&&... tail) {     int c = 0;     while (*s !=  ,  || c != 0) {       if (*s ==  (  || *s ==  [  || *s ==  { ) c++;       if (*s ==  )  || *s ==  ]  || *s ==  } ) c--;       cerr << *s++;     }     cerr <<  =  << head <<  ,  ;     _dump(s + 1, tail...);   }   template <typename Iter>   ostream& _out(ostream& s, Iter b, Iter e) {     s <<  [ ;     for (auto it = b; it != e; it++) s << (it == b ?    :    ) << *it;     s <<  ] ;     return s;   }   template <typename A, typename B>   ostream& operator<<(ostream& s, const pair<A, B>& p) {     return s <<  (  << p.first <<  ,  << p.second <<  ) ;   }   template <typename T>   ostream& operator<<(ostream& s, const vector<T>& c) {     return _out(s, begin(c), end(c));   }   template <typename T>   ostream& operator<<(ostream& s, const set<T>& c) {     return _out(s, begin(c), end(c));   }   template <typename A, typename B>   ostream& operator<<(ostream& s, const map<A, B>& c) {     return _out(s, begin(c), end(c));   }   vector<int> app[1000010];   int ask(int l, int r, int v) {     auto it = lower_bound(begin(app[v]), end(app[v]), l);     auto jt = upper_bound(begin(app[v]), end(app[v]), r);     return jt - it;   }   int n, m, a[300010], sa[300010], ord[300010], l[300010], r[300010];   bool vis[300010];   bool cmp(int x, int y) { return a[x] < a[y]; }   long long calc(int l1, int r1, int l2, int r2, int mx) {     long long ans = 0;     mx %= m;     if (r1 - l1 <= r2 - l2) {       for (int i = (l1 - 1); i <= int(r1 - 1); i++) {         int x = sa[i] + mx;         if (x >= m) x -= m;         int now = ask(l2, r2, x);         ans += now;       }     } else {       for (int i = (l2); i <= int(r2); i++) {         int x = sa[i] - mx;         if (x < 0) x += m;         int now = ask(l1 - 1, r1 - 1, x);         ans += now;       }     }     return ans;   }   int main() {     RI(n, m);     for (int i = (1); i <= int(n); i++) RI(a[i]);     for (int i = (1); i <= int(n); i++) l[i] = r[i] = i;     for (int i = (1); i <= int(n); i++) ord[i] = i;     for (int i = (1); i <= int(n); i++) sa[i] = (sa[i - 1] + a[i]) % m;     for (int i = (0); i <= int(n); i++) app[sa[i]].push_back(i);     sort(ord + 1, ord + n + 1, cmp);     long long ans = 0;     for (int ii = (1); ii <= int(n); ii++) {       int i = ord[ii];       vis[i] = 1;       if (i > 1 && vis[i - 1]) {         ans += calc(l[i - 1], i - 1, i, i, a[i]);         l[i] = l[i - 1];         r[l[i - 1]] = i;       }       if (i < n && vis[i + 1]) {         ans += calc(l[i], i, i + 1, r[i + 1], a[i]);         r[l[i]] = r[i + 1];         l[r[i + 1]] = l[i];       }     }     cout << ans << endl;     return 0;   }   