Submission #866517

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
866517	2023-10-26T10:08:40 Z	farica	Homecoming (BOI18_homecoming)	C++14	Compilation error	0 ms	0 KB

homecoming

#include <bits/stdc++.h>
#include 'homecoming.h'
#define int long long

using namespace std;

const int MAX_N=2000000;
const int N=1000001;

long long int solve(int N, int K, int *A, int *B) {
    int n=N, k=K;
    cin >> n >> k;
    int a[n], b[n], pref[n];
    for(int i=0; i<n; ++i) a[i] = A[i].
    for(int i=0; i<n; ++i) {
        b[i] = B[i];
        pref[i] = b[i];
        if(i) pref[i] += pref[i-1];
    }
    int dp[n][2], ans=0;
    dp[0][0] = -1e18;
    dp[0][1] = a[0] - pref[k-1];
    for(int i=1; i<n; ++i) {
        dp[i][0] = max(dp[i-1][0], dp[i-1][1]);
        int val1 = dp[i-1][1] + a[i];
        if((i+k-1)<n) val1 -= b[i+k-1];
        int val2 = dp[i-1][0] + a[i] - pref[min(i+k-1, n-1)] + pref[i-1];
        dp[i][1] = max(val1,val2);
    }
    ans = max(ans, dp[n-1][1]);
    ans = max(ans, dp[n-1][0]);
    dp[0][1] = -1e18;
    dp[0][0] = 0;
    for(int i=1; i<n; ++i) {
        dp[i][0] = max(dp[i-1][0], dp[i-1][1]);
        int val1 = dp[i-1][1] + a[i] - b[(i+k-1)%n];
        int val2 = dp[i-1][0] + a[i];
        if((i+k-1)<n) val2 -= pref[i+k-1] - pref[i-1];
        else val2 -= pref[n-1] - pref[i-1] + pref[(i+k-1)%n];
        dp[i][1] = max(val1, val2);
    }
    ans = max(ans, dp[n-1][0]);
    return ans;
}

Compilation message

homecoming.cpp:2:10: error: #include expects "FILENAME" or <FILENAME>
    2 | #include 'homecoming.h'
      |          ^~~~~~~~~~~~~~
homecoming.cpp:3:13: error: 'long long long' is too long for GCC
    3 | #define int long long
      |             ^~~~
homecoming.cpp:10:11: note: in expansion of macro 'int'
   10 | long long int solve(int N, int K, int *A, int *B) {
      |           ^~~
homecoming.cpp:3:18: error: 'long long long' is too long for GCC
    3 | #define int long long
      |                  ^~~~
homecoming.cpp:10:11: note: in expansion of macro 'int'
   10 | long long int solve(int N, int K, int *A, int *B) {
      |           ^~~
homecoming.cpp: In function 'long long int solve(long long int, long long int, long long int*, long long int*)':
homecoming.cpp:15:5: error: expected unqualified-id before 'for'
   15 |     for(int i=0; i<n; ++i) {
      |     ^~~
homecoming.cpp:15:18: error: 'i' was not declared in this scope
   15 |     for(int i=0; i<n; ++i) {
      |                  ^