oj.uz

Submission #1079307

# Submission time Handle Problem Language Result Execution time Memory
1079307 2024-08-28T12:53:58 Z _rain_ Coin Collecting (JOI19_ho_t4) C++14
8 / 100
 229 ms 181192 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fixbug false

void SETIO(string name = ""){
    if (name=="") return;
    freopen((name+".inp").c_str(),"r",stdin);
//    freopen((name+".out").c_str(),"w",stdout);
    return;
}
#define fi first
#define se second

#define MASK(x) ((ll)(1)<<(x))
#define BIT(mask,x) (((mask)>>(x))&(1))
const int maxn = 20;
ll dp[maxn+2][MASK(maxn)];
int n , x[maxn+2] , y[maxn+2];
vector<pair<int,int>> p;

int cost(int x1 , int y1 , int x2 , int y2){
    return abs(x1 - x2) + abs(y1 - y2);
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    SETIO("");

    cin >> n;
    for (int i = 1; i <= 2*n; ++i) cin >> x[i] >> y[i];
    memset(dp,0x3f,sizeof dp);
    for (int i = 1; i <= n; ++i) for (int j = 1 ; j <= 2; ++j) p.push_back({i,j});
    dp[0][0] = 0;
    for (int t = 1; t <= 2*n; ++t) {
        for (int mask = 0; mask < MASK(2*n); ++mask){
            if (__builtin_popcount(mask)!=t) continue;
            for (int i = 0; i < 2 * n; ++i) if (BIT(mask,i)){
                dp[t][mask] = min(dp[t][mask] , dp[t - 1][mask^MASK(i)] + cost(p[i].fi , p[i].se , x[t] , y[t]));
            }
        }
    }
    if (fixbug){
        cout << "(DEBUG)\n";
        for (int layer = 1; layer <= 2 * n; ++layer){
            for (int mask = 0; mask < MASK(2*n); ++mask){
                cout << dp[layer][mask] << ' ';
            }
            cout << '\n';
        }
    }
    cout << dp[2 * n][MASK(2 * n) - 1];
}

Compilation message

joi2019_ho_t4.cpp: In function 'void SETIO(std::string)':
joi2019_ho_t4.cpp:8:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     freopen((name+".inp").c_str(),"r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 180772 KB Output is correct
2 Correct 75 ms 180816 KB Output is correct
3 Correct 75 ms 180832 KB Output is correct
4 Correct 209 ms 180820 KB Output is correct
5 Correct 209 ms 180820 KB Output is correct
6 Correct 206 ms 180964 KB Output is correct
7 Correct 211 ms 180820 KB Output is correct
8 Correct 216 ms 180816 KB Output is correct
9 Correct 205 ms 180828 KB Output is correct
10 Correct 210 ms 180844 KB Output is correct
11 Correct 211 ms 180920 KB Output is correct
12 Correct 206 ms 180820 KB Output is correct
13 Correct 198 ms 180916 KB Output is correct
14 Correct 207 ms 180816 KB Output is correct
15 Correct 200 ms 180816 KB Output is correct
16 Correct 202 ms 180816 KB Output is correct
17 Correct 212 ms 180820 KB Output is correct
18 Correct 199 ms 180896 KB Output is correct
19 Correct 201 ms 180820 KB Output is correct
20 Correct 208 ms 181192 KB Output is correct
21 Correct 213 ms 180820 KB Output is correct
22 Correct 210 ms 180820 KB Output is correct
23 Correct 201 ms 180816 KB Output is correct
24 Correct 206 ms 180832 KB Output is correct
25 Correct 210 ms 180816 KB Output is correct
26 Correct 198 ms 180816 KB Output is correct
27 Correct 206 ms 180908 KB Output is correct
28 Correct 207 ms 180924 KB Output is correct
29 Correct 195 ms 180816 KB Output is correct
30 Correct 206 ms 180816 KB Output is correct
31 Correct 218 ms 180820 KB Output is correct
32 Correct 229 ms 180816 KB Output is correct
33 Correct 226 ms 180892 KB Output is correct

Subtask #2
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 180772 KB Output is correct
2 Correct 75 ms 180816 KB Output is correct
3 Correct 75 ms 180832 KB Output is correct
4 Correct 209 ms 180820 KB Output is correct
5 Correct 209 ms 180820 KB Output is correct
6 Correct 206 ms 180964 KB Output is correct
7 Correct 211 ms 180820 KB Output is correct
8 Correct 216 ms 180816 KB Output is correct
9 Correct 205 ms 180828 KB Output is correct
10 Correct 210 ms 180844 KB Output is correct
11 Correct 211 ms 180920 KB Output is correct
12 Correct 206 ms 180820 KB Output is correct
13 Correct 198 ms 180916 KB Output is correct
14 Correct 207 ms 180816 KB Output is correct
15 Correct 200 ms 180816 KB Output is correct
16 Correct 202 ms 180816 KB Output is correct
17 Correct 212 ms 180820 KB Output is correct
18 Correct 199 ms 180896 KB Output is correct
19 Correct 201 ms 180820 KB Output is correct
20 Correct 208 ms 181192 KB Output is correct
21 Correct 213 ms 180820 KB Output is correct
22 Correct 210 ms 180820 KB Output is correct
23 Correct 201 ms 180816 KB Output is correct
24 Correct 206 ms 180832 KB Output is correct
25 Correct 210 ms 180816 KB Output is correct
26 Correct 198 ms 180816 KB Output is correct
27 Correct 206 ms 180908 KB Output is correct
28 Correct 207 ms 180924 KB Output is correct
29 Correct 195 ms 180816 KB Output is correct
30 Correct 206 ms 180816 KB Output is correct
31 Correct 218 ms 180820 KB Output is correct
32 Correct 229 ms 180816 KB Output is correct
33 Correct 226 ms 180892 KB Output is correct
34 Incorrect 89 ms 181072 KB Output isn't correct
35 Halted 0 ms 0 KB -

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 180772 KB Output is correct
2 Correct 75 ms 180816 KB Output is correct
3 Correct 75 ms 180832 KB Output is correct
4 Correct 209 ms 180820 KB Output is correct
5 Correct 209 ms 180820 KB Output is correct
6 Correct 206 ms 180964 KB Output is correct
7 Correct 211 ms 180820 KB Output is correct
8 Correct 216 ms 180816 KB Output is correct
9 Correct 205 ms 180828 KB Output is correct
10 Correct 210 ms 180844 KB Output is correct
11 Correct 211 ms 180920 KB Output is correct
12 Correct 206 ms 180820 KB Output is correct
13 Correct 198 ms 180916 KB Output is correct
14 Correct 207 ms 180816 KB Output is correct
15 Correct 200 ms 180816 KB Output is correct
16 Correct 202 ms 180816 KB Output is correct
17 Correct 212 ms 180820 KB Output is correct
18 Correct 199 ms 180896 KB Output is correct
19 Correct 201 ms 180820 KB Output is correct
20 Correct 208 ms 181192 KB Output is correct
21 Correct 213 ms 180820 KB Output is correct
22 Correct 210 ms 180820 KB Output is correct
23 Correct 201 ms 180816 KB Output is correct
24 Correct 206 ms 180832 KB Output is correct
25 Correct 210 ms 180816 KB Output is correct
26 Correct 198 ms 180816 KB Output is correct
27 Correct 206 ms 180908 KB Output is correct
28 Correct 207 ms 180924 KB Output is correct
29 Correct 195 ms 180816 KB Output is correct
30 Correct 206 ms 180816 KB Output is correct
31 Correct 218 ms 180820 KB Output is correct
32 Correct 229 ms 180816 KB Output is correct
33 Correct 226 ms 180892 KB Output is correct
34 Incorrect 89 ms 181072 KB Output isn't correct
35 Halted 0 ms 0 KB -