Submission #47853

#	Time	Username	Problem	Language	Result	Execution time	Memory
47853		Just_Solve_The_Problem	Candies (JOI18_candies)	C++11	8 / 100	5036 ms	6456 KiB

candies

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int N = (int)2e5 + 7;

ll a[N], dp[2][N];
int n;

main() {
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) {
    scanf("%lld", &a[i]);
  }
  for (int j = 1; j <= (n + 1) / 2; j++) {
    memset(dp[j & 1], 0, sizeof dp[j & 1]);
    for (int i = j * 2 - 1; i <= n; i++) {
      dp[j & 1][i] = dp[j & 1][i - 1];
      dp[j & 1][i] = max(dp[j & 1][i], dp[j & 1 ^ 1][i - 2] + a[i]);
    }
    printf("%lld\n", dp[j & 1][n]);
  }
}

Compilation message (stderr)

candies.cpp:12:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
candies.cpp: In function 'int main()':
candies.cpp:21:45: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
       dp[j & 1][i] = max(dp[j & 1][i], dp[j & 1 ^ 1][i - 2] + a[i]);
                                           ~~^~~
candies.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ~~~~~^~~~~~~~~~
candies.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &a[i]);
     ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 0 / 92