oj.uz

답안 #338481

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
338481 2020-12-23T09:09:47 Z beksultan04 아름다운 순열 (IZhO12_beauty) C++14
0 / 100
 872 ms 209900 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
const int N = 1e6+11,INF=1e9+7;
int q[N],dp[N][51],tr[30],dv[30],vis[N][51],g[50][50],n;
int troich(int x){
    int ans=0;
    while (x > 0){
        if (x%3==1)ans++;
        x /=3;
    }
    ret ans;
}
int dvoich(int x){
    int ans=0;
    while (x > 0){
        if (x%2==1)ans++;
        x /=2;
    }
    ret ans;
}

bool is(int a,int b){
    ret (tr[a] == tr[b] || dv[a] == dv[b]);
}

int rec(int x,int j){
    if (x == (1<<n)-1)ret 1;
    if (vis[x][j]==1)ret dp[x][j];
    vis[x][j]=1;
    int ans=0,i;
    for (i=0;i<n;++i){
        if (i == j || (x&(1<<i)) || g[i][j] == 0)continue;
        ans += rec(x+(1<<i),i);
    }
    ret dp[x][j]=ans;
}


main(){
    int i,j,s,cnt=1;
    scan1(n)
    for (i=0;i<n;++i){
        scan1(q[i])
        tr[i]=troich(q[i]);
        dv[i]=dvoich(q[i]);
    }
    for (i=0;i<n;++i){
        for (j=i+1;j<n;++j){
            if (is(i,j)){
                g[i][j]=1;
                g[j][i]=1;
            }
        }
    }
    int ans=0;
    for (i=0;i<n;++i){
        ans+=rec((1<<i),i);
    }


    cout <<ans;




}

Compilation message

beauty.cpp:55:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   55 | main(){
      |      ^
beauty.cpp: In function 'int main()':
beauty.cpp:56:13: warning: unused variable 's' [-Wunused-variable]
   56 |     int i,j,s,cnt=1;
      |             ^
beauty.cpp:56:15: warning: unused variable 'cnt' [-Wunused-variable]
   56 |     int i,j,s,cnt=1;
      |               ^~~
beauty.cpp:11:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
beauty.cpp:57:5: note: in expansion of macro 'scan1'
   57 |     scan1(n)
      |     ^~~~~
beauty.cpp:11:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
beauty.cpp:59:9: note: in expansion of macro 'scan1'
   59 |         scan1(q[i])
      |         ^~~~~

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 1132 KB Output is correct
7 Correct 1 ms 1132 KB Output is correct
8 Correct 1 ms 1132 KB Output is correct
9 Correct 1 ms 1132 KB Output is correct
10 Correct 2 ms 1132 KB Output is correct
11 Correct 25 ms 12928 KB Output is correct
12 Correct 21 ms 13420 KB Output is correct
13 Correct 130 ms 52980 KB Output is correct
14 Correct 718 ms 209792 KB Output is correct
15 Correct 872 ms 209756 KB Output is correct
16 Correct 580 ms 209900 KB Output is correct
17 Correct 754 ms 209772 KB Output is correct
18 Correct 471 ms 209772 KB Output is correct
19 Runtime error 29 ms 1132 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Halted 0 ms 0 KB -