Submission #54640

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
54640	2018-07-04T10:48:25 Z	gs18115	Secret (JOI14_secret)	C++14	Compilation error	0 ms	0 KB

secret

#include"secret.h"
#include<map>
using namespace std;
map<pair<int,int>,bool>CHK;
map<pair<int,int>,int>SEC;
int ST[4567];
int N2;
int Secret2(int X,int Y)
{
    pair<int,int>P;
    P=make_pair(X,Y);
    if(CHK[P])
        return SEC[P];
    CHK[P]=true;
    return SEC[P]=Secret(X,Y);
}
void P(int I,int N)
{
    if(!I)return;
    ST[I]=N;
    if(I&1)
        P(I>>1,Secret2(ST[I^1],N));
    else
        P(I>>1,Secret2(N,ST[I^1]));
}
int Q(int S,int F)
{
    if(S>F)return 0;
    int A;
    A=Q(S+1>>1,F-1>>1);
    if(S&1)
        A=Secret2(ST[S],A);
    if(!(F&1))
        A=Secret2(A,ST[F]);
    return A;
}
void Init(int N,int A[])
{
    for(N2=1;N2<N;N2<<=1);
    for(i=0;i<N;i++)
        P(i+N2,A[i]);
}
int Query(int L,int R)
{
    return Q(L+N2,R+N2);
}

Compilation message

secret.cpp: In function 'int Q(int, int)':
secret.cpp:30:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     A=Q(S+1>>1,F-1>>1);
         ~^~
secret.cpp:30:17: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
     A=Q(S+1>>1,F-1>>1);
                ~^~
secret.cpp: In function 'void Init(int, int*)':
secret.cpp:40:9: error: 'i' was not declared in this scope
     for(i=0;i<N;i++)
         ^