Submission #1092181

#	Time	Username	Problem	Language	Result	Execution time	Memory
1092181		TgX_2	Kronican (COCI16_kronican)	C++17	0 / 100	75 ms	65536 KiB

kronican

/*-----------------------------
        Author : TgX.2
       11Ti - K28 - CHV
-----------------------------*/

#include <bits/stdc++.h>

#define FOR(i, a, b)       for (int i = (a), _b = (b); i <= _b; i += 1)
#define FORD(i, a, b)      for (int i = (a), _b = (b); i >= _b; i -= 1)
#define FORC(i, a, b, c)   for (int i = (a), _b = (b), _c = (c); i <= _b; i += _c)

#define fi                 first
#define se                 second
#define pb                 push_back
#define len(x)             (int)((x).size())
#define all(x)             (x).begin(), (x).end()

#define _                  << " " <<
#define __                 << "\n"
#define ___                << " "

#define ______________TgX______________ main()
#define int                long long
#define intmax             1e9
#define intmin            -1e9
#define llongmax           1e18
#define llongmin          -1e18
#define memo(a, val)       memset((a), (val), sizeof((a)))

using   namespace std;

#define debug(args...) { string _s = #args; replace(_s.begin(), _s.end(), ',', ' '); stringstream _ss(_s); istream_iterator<string> _it(_ss); err(_it, args); cout << endl; }
void err(istream_iterator<string> it) {}
template<typename T, typename... Args>
void err(istream_iterator<string> it, T a, Args... args) {
    cout << "[ " << *it << " = " << a << " ] ";
    err(++it, args...);
}

template<typename T1, typename T2> ostream& operator << (ostream& out, const pair<T1, T2>& p) {
    return out << "[ " << p.first << " , " << p.second << " ] ";
}

template<class Con, class = decltype(begin(declval<Con>()))>
typename enable_if<!is_same<Con, string>::value, ostream&>::type
operator << (ostream& out, const Con& con) {
    out << "{ ";
    for (auto beg = con.begin(), it = beg; it != con.end(); it++) {
        out << (it == beg ? "" : ", ") << *it;
    }
    return out << " } ";
}

template <int D, typename T>
struct Vec : public vector<Vec<D - 1, T>> {
    template <typename... Args>
    Vec(int n = 0, Args... args) : vector<Vec<D - 1, T>>(n, Vec<D - 1, T>(args...)) {}
};

template <typename T>
struct Vec<1, T> : public vector<T> {
    Vec(int n = 0, const T &val = T()) : vector<T>(n, val) {}
};

template<typename T1, typename T2> 
bool mini(T1 &a, T2 b)
    {if (a > b) a = b; else return 0; return 1;}

template<typename T1, typename T2> 
bool maxi(T1 &a, T2 b)
    {if (a < b) a = b; else return 0; return 1;}
/*-----------------------------*/

int n, k, a[25][25];
int f[(1 << 20)][20];

int dp(int mask, int cnt) {
    if (__builtin_popcount(mask) == n) return (cnt <= k ? 0 : intmax);
    int &ans = f[mask][cnt];
    if (ans != -1) return ans;

    ans = intmax;    
    FOR(i, 0, n - 1) if ((mask & (1 << i)) == 0) {
        mini(ans, dp(mask | (1 << i), cnt + 1));
        FOR(j, 0, n - 1) if (j != i)
            mini(ans, dp(mask | (1 << j), cnt) + min(a[i][j], a[j][i]));
    }
    return ans;
}

void process() {
    cin >> n >> k;
    FOR(i, 0, n - 1) FOR(j, 0, n - 1) cin >> a[i][j];

    memo(f, -1);
    cout << dp(0, 0);
}



/*-----------------------------*/
______________TgX______________ {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);  
    if (fopen("temp.inp", "r")) {
        freopen("temp.inp", "r", stdin);
        freopen("temp.out", "w", stdout);
    }
    process();
    // cerr << "Time: " << 1.0 * clock() / CLOCKS_PER_SEC __ ;
}


/*==============================+
|INPUT                          |
--------------------------------|

================================+
|OUTPUT                         |
--------------------------------|

===============================*/

Compilation message (stderr)

kronican.cpp:22:41: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   22 | #define ______________TgX______________ main()
      |                                         ^~~~
kronican.cpp:102:1: note: in expansion of macro '______________TgX______________'
  102 | ______________TgX______________ {
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kronican.cpp: In function 'int main()':
kronican.cpp:106:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  106 |         freopen("temp.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
kronican.cpp:107:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  107 |         freopen("temp.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100