Submission #110554

#	Time	Username	Problem	Language	Result	Execution time	Memory
110554		ckodser	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++14	0 / 100	7072 ms	1400 KiB

encoder

#include<bits/stdc++.h>
#include <functional>

#define ll long long
#define pb push_back
#define mp make_pair
#define ld long double
#define F first
#define S second
#define pii pair<ll,ll> 

using namespace :: std;

const ll mod=1e9+7;
const ll maxn=1000;
const ll inf=1e9+900;

char ans[maxn][maxn];
ll f[maxn];

void bild(){
    ll m=(1<<12);
    ll cnt=1;
    for(ll i=0;i<m;i++){
	    if(__builtin_popcount(i)==6){
	    f[cnt]=i;
	    cnt++;
	}
    }
    for(ll i=1;i<cnt;i++){
	for(ll j=1;j<cnt;j++){
	    if(i!=j){
		ll fj=f[j];
		ll fi=(~f[i]);
		for(ll u=0;u<12;u++){
		    if(((fi>>u)&1) && ((fj>>u)&1)){
			ans[i][j]=u+1;
		    }
		}
	    }
	}
    }
}
int encode(int n, int x, int y) {
    bild();
    return ans[x][y];
}

decoder

#include<bits/stdc++.h>
#include <functional>

#define ll long long
#define pb push_back
#define mp make_pair
#define ld long double
#define F first
#define S second
#define pii pair<ll,ll> 

using namespace :: std;

const ll mod=1e9+7;
const ll maxn=1000;
const ll inf=1e9+900;

char ans[maxn][maxn];
ll f[maxn];

void bild(){
    ll m=(1<<12);
    ll cnt=1;
    for(ll i=0;i<m;i++){
	    if(__builtin_popcount(i)==6){
	    f[cnt]=i;
	    cnt++;
	}
    }
    for(ll i=1;i<cnt;i++){
	for(ll j=1;j<cnt;j++){
	    if(i!=j){
		ll fj=f[j];
		ll fi=(~f[i]);
		for(ll u=0;u<12;u++){
		    if(((fi>>u)&1) && ((fj>>u)&1)){
			ans[i][j]=u;
		    }
		}
	    }
	}
    }
}
int decode(int n, int q, int h) {
    bild();
    for(ll i=1;i<=n;i++){
	for(ll j=1;j<=n;j++){
	    if(ans[i][j]==h && i==q){
		return 0;
	    }
	    if(ans[i][j]==h && j==q){
		return 1;
	    }
	}
    }
}

Compilation message (stderr)

decoder.cpp: In function 'int decode(int, int, int)':
decoder.cpp:56:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 0 / 100