oj.uz

답안 #1065522

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1065522 2024-08-19T08:55:30 Z shidou26 Kronican (COCI16_kronican) C++14
0 / 100
 569 ms 38064 KB 
#include <bits/stdc++.h>
using namespace std;

#define endl '\n'
#define all(v) v.begin(), v.end()
#define filter(v) v.resize(unique(all(v)) - v.begin())

typedef long long ll;
typedef pair<int, int> ii;

const int MOD = 1e9 + 7;
inline ll add(ll x, ll y, ll mod = MOD) {return ((x % mod) + (y % mod)) % mod;}
inline ll sub(ll x, ll y, ll mod = MOD) {return ((x - y) % mod + mod) % mod;}
inline ll prod(ll x, ll y, ll mod = MOD) {return ((x % mod) * (y % mod)) % mod;}

const int N = 23;

int n, k;
int cost[N][N];

int dp[(1 << N)];
vector<int> ord[N];

void prepare() {

}

void input() {
    cin >> n >> k;

    for(int i = 0; i < n; i++) {
        for(int j = 0; j < n; j++) {
            cin >> cost[i][j];
        }
    }
}

void print(int mask) {
    bitset<5> b(mask);
    for(int i = 0; i < 5; i++) cout << b[i];
    cout << " : " << dp[mask] << endl;
}

void process() {
    memset(dp, 0x3f, sizeof(dp));
    dp[(1 << n) - 1] = 0;

    for(int i = 0; i < (1 << n); i++) {
        int ones = __builtin_popcount(i);
        ord[ones].push_back(i);
    }

    for(int i = n; i > k; i--) {
        for(int mask : ord[i]) {
            for(int j = 0; j < n; j++) {
                if(mask & (1 << j)) {
                    for(int k = 0; k < n; k++) {
                        if(mask & (1 << k)) {
                            if(j != k) {
                                dp[mask ^ (1 << j)] = min(dp[mask ^ (1 << j)], dp[mask] + cost[j][k]);
                            }
                        }
                    }
                }
            }
        }
    }

    int best = 1e9;
    for(int mask : ord[k]) best = min(best, dp[mask]);
    cout << best << endl;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    #define task "Date_A_Live"
    if(fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }

    prepare();

    int tc = 1; // cin >> tc;

    for(int i = 1; i <= tc; i++) {
        input();
        process();
    }

    cerr << "Saa, watashtachi no deito hajimemashou" << endl;

    return 0;
}

/*
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*/

Compilation message

kronican.cpp: In function 'int main()':
kronican.cpp:80:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
kronican.cpp:81:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 4 ms 33116 KB Memory limit exceeded
2 Runtime error 4 ms 33116 KB Memory limit exceeded
3 Runtime error 4 ms 33116 KB Memory limit exceeded
4 Runtime error 4 ms 33116 KB Memory limit exceeded
5 Runtime error 8 ms 33372 KB Memory limit exceeded
6 Runtime error 16 ms 33372 KB Memory limit exceeded
7 Runtime error 26 ms 33628 KB Memory limit exceeded
8 Runtime error 54 ms 33884 KB Memory limit exceeded
9 Runtime error 569 ms 38064 KB Memory limit exceeded
10 Runtime error 56 ms 38064 KB Memory limit exceeded