Submission #927633

#	Time	Username	Problem	Language	Result	Execution time	Memory
927633		galen_colin	Diversity (CEOI21_diversity)	C++17	64 / 100	7061 ms	12280 KiB

diversity

#include "bits/stdc++.h"
using namespace std;

// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

/* 
find my code templates at https://github.com/galencolin/cp-templates
also maybe subscribe please thanks 
*/

#define send {ios_base::sync_with_stdio(false);}
#define help {cin.tie(NULL);}
#define f first
#define s second
#define getunique(v) {sort(v.begin(), v.end()); v.erase(unique(v.begin(), v.end()), v.end());}

using ll = long long;
// using ll = int;
// #pragma warning("int")
//
using vl = vector<ll>;
using pl = pair<ll, ll>;

typedef long double ld;
typedef unsigned long long ull;

#include <ext/pb_ds/assoc_container.hpp> 
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds; 

template <typename num_t>
using ordered_set = tree<num_t, null_type, less<num_t>, rb_tree_tag, tree_order_statistics_node_update>;

// benq - print any container + pair
template<typename T, typename = void> struct is_iterable : false_type {};
template<typename T> struct is_iterable<T, void_t<decltype(begin(declval<T>())),decltype(end(declval<T>()))>> : true_type {};
template<typename T> typename enable_if<is_iterable<T>::value&&!is_same<T, string>::value,ostream&>::type operator<<(ostream &cout, T const &v);
template<typename A, typename B> ostream& operator<<(ostream &cout, pair<A, B> const &p) { return cout << "(" << p.f << ", " << p.s << ")"; }
template<typename T> typename enable_if<is_iterable<T>::value&&!is_same<T, string>::value,ostream&>::type operator<<(ostream &cout, T const &v) {
    cout << "["; 
    for (auto it = v.begin(); it != v.end();) {
        cout << *it;
        if (++it != v.end()) cout << ", ";
    }
    return cout << "]";
}
template<typename A, typename B> istream& operator>>(istream& cin, pair<A, B> &p) {
    cin >> p.first;
    return cin >> p.second;
}

template<typename T> void debug(string s, T x) {cerr << "\033[1;34m" << s << "\033[0;32m = \033[35m" << x << "\033[0m\n";}
template<typename T, typename... Args> void debug(string s, T x, Args... args) {for (int i=0, b=0; i<(int)s.size(); i++) if (s[i] == '(' || s[i] == '{') b++; else
        if (s[i] == ')' || s[i] == '}') b--; else if (s[i] == ',' && b == 0) {cerr << "\033[1;34m" << s.substr(0, i) << "\033[0;32m = \033[35m" << x << "\033[31m | "; debug(s.substr(s.find_first_not_of(' ', i + 1)), args...); break;}}
template<typename T> void debug_nameless(T x) {cerr << "\033[35m" << x << "\033[0m\n";}
template<typename T, typename... Args> void debug_nameless(T x, Args... args) {cerr << "\033[35m" << x << "\033[31m | "; debug_nameless(args...);}

#ifdef galen_colin_local
#define pr(...) debug(#__VA_ARGS__, __VA_ARGS__)
#define prs(...) debug_nameless(__VA_ARGS__)
const bool local_ = true;
#else
#define pr(...) 135
#define prs(...) 135
const bool local_ = false;
#endif

mt19937_64 rng(std::chrono::steady_clock::now().time_since_epoch().count());
// mt19937_64 rng(61378913);
/* usage - just do rng() */

void usaco(string filename) {
// #pragma message("be careful, freopen may be wrong")
    freopen((filename + ".in").c_str(), "r", stdin);
    freopen((filename + ".out").c_str(), "w", stdout);
}

// #include <atcoder/all>
// using namespace atcoder;

const ld pi = 3.14159265358979323846;
// const ll mod = 1000000007;
// const ll mod = 998244353;
// ll mod;



ll n, m, q, k, l, r, x, y, z;
const ll template_array_size = 1e6 + 206171;
ll a[template_array_size];
ll b[template_array_size];
ll c[template_array_size];
string s, t;

ll res(vl c) {
    vl a, b;
    ll sa = 0, sb = 0;
    ll t = 0;
    for (ll x: c) {
        t += x;
        if (sa >= sb) {
            b.push_back(x);
            sb += x;
        } else {
            a.push_back(x);
            sa += x;
        }
    }
    reverse(b.begin(), b.end());
    for (ll x: b) a.push_back(x);

    pr(a, t);

    ll s = t * (t + 1) / 2, r = 0;
    for (ll x: a) r += x, s += r * (t - r);
    return s;
}

const bool run = local_ ? 0 : 1;
void solve(int tc = 0) {
    cin >> n >> q;
    vl a(n);
    for (ll &x: a) cin >> x, --x;
    for (ll i = 0; i < q; i++) {
        cin >> l >> r;
        --l; --r;
        vl c(n);
        for (ll j = l; j <= r; j++) ++c[a[j]];
        sort(c.rbegin(), c.rend());
        while (c.back() == 0) c.pop_back();
        reverse(c.begin(), c.end());

        cout << res(c) << '\n';
    }
}

int main() {
    #ifdef galen_colin_local
        auto begin = std::chrono::high_resolution_clock::now();
    #endif
    
    send help

    #ifndef galen_colin_local
        // usaco("evacuation");
    #endif
    
    // usaco("cowland");
    
    // freopen("tc.cpp", "r", stdin);
    // freopen("tc.cpp", "w", stdout);
    // freopen("tc2.cpp", "w", stdout);
    // freopen("in.txt", "r", stdin);
    // freopen("out.txt", "w", stdout);
        
    cout << setprecision(15) << fixed;
    cerr << setprecision(4) << fixed;

    
            
    int tc = 1;
    // if (local_)
    // if (!run)
    // cin >> tc;
    for (int t = 0; t < tc; t++) {
        pr(t); prs(string(50, '-'));
        solve(t);
        prs(string(50, '-') + "\n");
    }
    
    #ifdef galen_colin_local
        auto end = std::chrono::high_resolution_clock::now();
        cerr << setprecision(4) << fixed;
        cerr << "Execution time: " << std::chrono::duration_cast<std::chrono::duration<double>>(end - begin).count() << " seconds" << endl;
    #endif
}

Compilation message (stderr)

diversity.cpp: In function 'll res(vl)':
diversity.cpp:66:17: warning: statement has no effect [-Wunused-value]
   66 | #define pr(...) 135
      |                 ^~~
diversity.cpp:115:5: note: in expansion of macro 'pr'
  115 |     pr(a, t);
      |     ^~
diversity.cpp: In function 'int main()':
diversity.cpp:66:17: warning: statement has no effect [-Wunused-value]
   66 | #define pr(...) 135
      |                 ^~~
diversity.cpp:169:9: note: in expansion of macro 'pr'
  169 |         pr(t); prs(string(50, '-'));
      |         ^~
diversity.cpp:67:18: warning: statement has no effect [-Wunused-value]
   67 | #define prs(...) 135
      |                  ^~~
diversity.cpp:169:16: note: in expansion of macro 'prs'
  169 |         pr(t); prs(string(50, '-'));
      |                ^~~
diversity.cpp:67:18: warning: statement has no effect [-Wunused-value]
   67 | #define prs(...) 135
      |                  ^~~
diversity.cpp:171:9: note: in expansion of macro 'prs'
  171 |         prs(string(50, '-') + "\n");
      |         ^~~
diversity.cpp: In function 'void usaco(std::string)':
diversity.cpp:77:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   77 |     freopen((filename + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diversity.cpp:78:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |     freopen((filename + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 10 / 10
• Subtask 3: 8 / 8
• Subtask 4: 16 / 16
• Subtask 5: 26 / 26
• Subtask 6: 0 / 36