oj.uz

답안 #186869

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
186869 2020-01-12T11:22:04 Z nicolaalexandra Political Development (BOI17_politicaldevelopment) C++14
27 / 100
 3000 ms 27924 KB 
#include <bits/stdc++.h>
#define DIM 50010
using namespace std;
priority_queue <pair<int,int>, vector <pair<int,int> >, greater<pair<int,int> > > H;
set <int> L[DIM];
int n,k,i,j,sol,el,nod;
int v[DIM],x[DIM],viz[DIM],f[DIM],g[DIM],mask[DIM];
int verif (int x, int y){
    if (L[x].find(y) != L[x].end())
        return 1;
    return 0;
}

void get_max_clique (int nod){
    el = 0;
    v[++el] = nod;
    for (auto vecin:L[nod])
        v[++el] = vecin;

    for (int i=1;i<=el;i++)
        mask[i] = 0;
    for (int i=1;i<=el;i++)
        for (int j=1;j<=el;j++){
            if (i == j){
                mask[i] |= (1<<(i-1));
                continue;
            }
            if (verif(v[i],v[j]))
                mask[i] |= (1<<(j-1));
        }

    int val = (1<<el)-1;
    for (int i=0;i<=val;i++){
        int ok = 0;
        for (int bit=0;bit<el;bit++){
            if (!(i&(1<<bit))) /// nu face parte din masca
                continue;
            if ((mask[bit+1]&i) != i){ /// nu se potrivesc
                ok = 1;
                break;
            }
        }
        if (!ok)
            sol = max (sol,__builtin_popcount(i));
    }

}
int main (){

    FILE *fin = stdin;
    FILE *fout = stdout;

    fscanf (fin,"%d%d",&n,&k);
    for (i=1;i<=n;++i){
        fscanf (fin,"%d",&g[i]);
        for (j=1;j<=g[i];++j){
            fscanf (fin,"%d",&nod);
            L[i].insert(nod+1);
        }
        H.push (make_pair(g[i],i));
    }
    while (!H.empty()){
        int nod = H.top().second;
        int grad = H.top().first;
        H.pop();
        if (grad != g[nod]) /// inseamna ca nu e ala cu gradul minim
            continue;
        /// vreau sa gasesc clica maxima din care poate face parte nod
        get_max_clique (nod);
        viz[nod] = 1;
        /// acum il elimin pe nod si toate muchiile
        for (auto vecin:L[nod]){
            if (viz[vecin])
                continue;
            /// nu am incercat sa obtin clica de aici deloc
            viz[vecin] = 1;
            --g[vecin];
            L[vecin].erase(L[vecin].find(nod));
            H.push(make_pair(g[vecin],vecin));

        }
        L[nod].clear();
    }
    fprintf(fout,"%d",sol);

    return 0;
}
/// din nou, nu sunt in stare sa citesc un enunt cum trb

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:53:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf (fin,"%d%d",&n,&k);
     ~~~~~~~^~~~~~~~~~~~~~~~~~
politicaldevelopment.cpp:55:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf (fin,"%d",&g[i]);
         ~~~~~~~^~~~~~~~~~~~~~~~
politicaldevelopment.cpp:57:20: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             fscanf (fin,"%d",&nod);
             ~~~~~~~^~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3320 KB Output is correct
4 Correct 43 ms 3320 KB Output is correct
5 Correct 43 ms 3320 KB Output is correct
6 Correct 10 ms 3320 KB Output is correct
7 Correct 10 ms 3320 KB Output is correct
8 Correct 6 ms 2808 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 7 ms 2780 KB Output is correct

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3320 KB Output is correct
4 Correct 43 ms 3320 KB Output is correct
5 Correct 43 ms 3320 KB Output is correct
6 Correct 10 ms 3320 KB Output is correct
7 Correct 10 ms 3320 KB Output is correct
8 Correct 6 ms 2808 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 7 ms 2780 KB Output is correct
11 Correct 44 ms 3320 KB Output is correct
12 Correct 40 ms 3320 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 44 ms 3320 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 11 ms 3320 KB Output is correct
17 Correct 0 ms 2556 KB Output is correct
18 Correct 10 ms 3320 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 7 ms 3064 KB Output is correct
21 Correct 7 ms 3064 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 11 ms 3404 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 11 ms 3448 KB Output is correct
26 Correct 10 ms 3320 KB Output is correct
27 Correct 9 ms 3320 KB Output is correct
28 Correct 11 ms 3320 KB Output is correct
29 Correct 10 ms 3320 KB Output is correct
30 Correct 20 ms 3448 KB Output is correct
31 Correct 7 ms 3448 KB Output is correct
32 Correct 13 ms 3548 KB Output is correct
33 Correct 10 ms 3552 KB Output is correct
34 Correct 11 ms 3420 KB Output is correct
35 Correct 7 ms 3180 KB Output is correct
36 Correct 7 ms 3056 KB Output is correct
37 Correct 4 ms 2996 KB Output is correct
38 Execution timed out 3047 ms 2984 KB Time limit exceeded
39 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2876 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2684 KB Output is correct
6 Correct 6 ms 2680 KB Output is correct
7 Correct 4 ms 2716 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 500 ms 27892 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 497 ms 27924 KB Output is correct
14 Correct 4 ms 2684 KB Output is correct
15 Correct 490 ms 27860 KB Output is correct
16 Correct 493 ms 27844 KB Output is correct
17 Correct 497 ms 27888 KB Output is correct
18 Correct 497 ms 27916 KB Output is correct

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3320 KB Output is correct
4 Correct 43 ms 3320 KB Output is correct
5 Correct 43 ms 3320 KB Output is correct
6 Correct 10 ms 3320 KB Output is correct
7 Correct 10 ms 3320 KB Output is correct
8 Correct 6 ms 2808 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 7 ms 2780 KB Output is correct
11 Correct 44 ms 3320 KB Output is correct
12 Correct 40 ms 3320 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 44 ms 3320 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 11 ms 3320 KB Output is correct
17 Correct 0 ms 2556 KB Output is correct
18 Correct 10 ms 3320 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 7 ms 3064 KB Output is correct
21 Correct 7 ms 3064 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 11 ms 3404 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 11 ms 3448 KB Output is correct
26 Correct 10 ms 3320 KB Output is correct
27 Correct 9 ms 3320 KB Output is correct
28 Correct 11 ms 3320 KB Output is correct
29 Correct 10 ms 3320 KB Output is correct
30 Correct 20 ms 3448 KB Output is correct
31 Correct 7 ms 3448 KB Output is correct
32 Correct 13 ms 3548 KB Output is correct
33 Correct 10 ms 3552 KB Output is correct
34 Correct 11 ms 3420 KB Output is correct
35 Correct 7 ms 3180 KB Output is correct
36 Correct 7 ms 3056 KB Output is correct
37 Correct 4 ms 2996 KB Output is correct
38 Execution timed out 3047 ms 2984 KB Time limit exceeded
39 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3320 KB Output is correct
4 Correct 43 ms 3320 KB Output is correct
5 Correct 43 ms 3320 KB Output is correct
6 Correct 10 ms 3320 KB Output is correct
7 Correct 10 ms 3320 KB Output is correct
8 Correct 6 ms 2808 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 7 ms 2780 KB Output is correct
11 Correct 44 ms 3320 KB Output is correct
12 Correct 40 ms 3320 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 44 ms 3320 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 11 ms 3320 KB Output is correct
17 Correct 0 ms 2556 KB Output is correct
18 Correct 10 ms 3320 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 7 ms 3064 KB Output is correct
21 Correct 7 ms 3064 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 11 ms 3404 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 11 ms 3448 KB Output is correct
26 Correct 10 ms 3320 KB Output is correct
27 Correct 9 ms 3320 KB Output is correct
28 Correct 11 ms 3320 KB Output is correct
29 Correct 10 ms 3320 KB Output is correct
30 Correct 20 ms 3448 KB Output is correct
31 Correct 7 ms 3448 KB Output is correct
32 Correct 13 ms 3548 KB Output is correct
33 Correct 10 ms 3552 KB Output is correct
34 Correct 11 ms 3420 KB Output is correct
35 Correct 7 ms 3180 KB Output is correct
36 Correct 7 ms 3056 KB Output is correct
37 Correct 4 ms 2996 KB Output is correct
38 Execution timed out 3047 ms 2984 KB Time limit exceeded
39 Halted 0 ms 0 KB -