Submission #605908

#	Time	Username	Problem	Language	Result	Execution time	Memory
605908		kawaii	Secret (JOI14_secret)	C++14	0 / 100	472 ms	8792 KiB

secret

#include "secret.h"
#include<bits/stdc++.h>
using namespace std;
 
int a[1005], pre[1005][1005];
map<pair<int, int>, int> mp;

void Init(int N, int A[]){
    for(int i = 1; i <= N; i++) a[i] = A[i - 1];
    for(int i = 1; i <= N; i++) pre[i][i] = a[i];
    for(int i = 1; i <= 9; i++){
        for(int j = 1; j + (1 << i) - 1 <= N; j++){
            int val = Secret(pre[j][j + (1 << i - 1) - 1], pre[j + (1 << i - 1)][j + (1 << i) - 1]);
            pre[j][j + (1 << i) - 1] = val;
            mp[{pre[j][j + (1 << i - 1) - 1], pre[j + (1 << i - 1)][j + (1 << i) - 1]}] = val;
        }
    }
}
 
int Query(int L, int R){
    int ans = -1; L++; R++;
    int diff = R - L + 1;
    // cout << diff <<" ";
    for(int i = 0; i <= 9; i++){
        if((1 << i) & diff){
            if(ans == -1) ans = pre[L][L + (1 << i) - 1];
            else{
                if(mp[{ans, pre[L][L + (1 << i) - 1]}] == 0){
                    int val = Secret(ans, pre[L][L + (1 << i) - 1]);
                    mp[{ans, pre[L][L + (1 << i) - 1]}] = val;
                    ans = val;
                }
            }
            L += (1 << i);
        }
    }
    return ans;
}

Compilation message (stderr)

secret.cpp: In function 'void Init(int, int*)':
secret.cpp:13:49: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   13 |             int val = Secret(pre[j][j + (1 << i - 1) - 1], pre[j + (1 << i - 1)][j + (1 << i) - 1]);
      |                                               ~~^~~
secret.cpp:13:76: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   13 |             int val = Secret(pre[j][j + (1 << i - 1) - 1], pre[j + (1 << i - 1)][j + (1 << i) - 1]);
      |                                                                          ~~^~~
secret.cpp:15:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   15 |             mp[{pre[j][j + (1 << i - 1) - 1], pre[j + (1 << i - 1)][j + (1 << i) - 1]}] = val;
      |                                  ~~^~~
secret.cpp:15:63: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   15 |             mp[{pre[j][j + (1 << i - 1) - 1], pre[j + (1 << i - 1)][j + (1 << i) - 1]}] = val;
      |                                                             ~~^~~

• Subtask 1: 0 / 100