Submission #338492

#	Time	Username	Problem	Language	Result	Execution time	Memory
338492		beksultan04	Beautiful row (IZhO12_beauty)	C++14	Compilation error	0 ms	0 KiB

beauty

#include <bits/stdc++.h>
using namespace std;
#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 ll long long
#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 = 1048579,INF=1e9+7;
int q[N],tr[30],dv[30],g[50][50],n;
ll dp[N][21];
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]);
}
 
ll rec(int x,int j){
    if (x == (1<<n)-1)ret 1;
  	ll &ret=dp[x][j];
    if (~ret)
      ret ret;ret=0;
    int i;
    for (i=0;i<n;++i){
        if (i == j || (x&(1<<i)) || g[i][j] == 0)continue;
        ret += rec(x+(1<<i),i);
    }
    ret ret;
}
 
 
main(){
  memset(dp,-1,sizeof dp);
    int i,j,s,cnt=1;
  cin>>n;
    for (i=0;i<n;++i){
      cin>>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;
            }
        }
    }
    ll ans=0;
    for (i=0;i<n;++i){
        ans+=rec((1<<i),i);
    }
 
 
    cout <<ans;
 
 
 
 
}

Compilation message (stderr)

beauty.cpp: In function 'long long int rec(int, int)':
beauty.cpp:9:13: error: expected unqualified-id before 'return'
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:45:8: note: in expansion of macro 'ret'
   45 |    ll &ret=dp[x][j];
      |        ^~~
beauty.cpp:9:13: error: expected primary-expression before 'return'
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:46:10: note: in expansion of macro 'ret'
   46 |     if (~ret)
      |          ^~~
beauty.cpp:46:10: error: expected ')' before 'return'
   46 |     if (~ret)
      |        ~ ^
      |          )
beauty.cpp:9:13: error: expected primary-expression before 'return'
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:47:11: note: in expansion of macro 'ret'
   47 |       ret ret;ret=0;
      |           ^~~
beauty.cpp:9:13: error: expected ';' before 'return'
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:47:11: note: in expansion of macro 'ret'
   47 |       ret ret;ret=0;
      |           ^~~
beauty.cpp:9:13: error: return-statement with no value, in function returning 'long long int' [-fpermissive]
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:47:11: note: in expansion of macro 'ret'
   47 |       ret ret;ret=0;
      |           ^~~
beauty.cpp:47:18: error: expected primary-expression before '=' token
   47 |       ret ret;ret=0;
      |                  ^
beauty.cpp:51:13: error: expected primary-expression before '+=' token
   51 |         ret += rec(x+(1<<i),i);
      |             ^~
beauty.cpp:9:13: error: expected primary-expression before 'return'
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:53:9: note: in expansion of macro 'ret'
   53 |     ret ret;
      |         ^~~
beauty.cpp:9:13: error: expected ';' before 'return'
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:53:9: note: in expansion of macro 'ret'
   53 |     ret ret;
      |         ^~~
beauty.cpp:9:13: error: return-statement with no value, in function returning 'long long int' [-fpermissive]
    9 | #define ret return
      |             ^~~~~~
beauty.cpp:53:9: note: in expansion of macro 'ret'
   53 |     ret ret;
      |         ^~~
beauty.cpp: At global scope:
beauty.cpp:57:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 | main(){
      |      ^
beauty.cpp: In function 'int main()':
beauty.cpp:59:13: warning: unused variable 's' [-Wunused-variable]
   59 |     int i,j,s,cnt=1;
      |             ^
beauty.cpp:59:15: warning: unused variable 'cnt' [-Wunused-variable]
   59 |     int i,j,s,cnt=1;
      |               ^~~