Submission #1207961

#TimeUsernameProblemLanguageResultExecution timeMemory
1207961CyanmondPacking Biscuits (IOI20_biscuits)C++20
Compilation error
0 ms0 KiB
#include "biscuits.h" #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; using ll = long long; constexpr int n = 63; ll a[64], dp[64]; long long count_tastiness(long long x, std::vector<long long> a_) { fill(a, a + n + 1, 0); copy(a_.begin(), a_.end(), a); for (int i = 0; i < n; ++i) { if (a[i] > x + 1) { ll diff = a[i] - (x + 1); ll div = (diff + 1) / 2; a[i] -= div * 2; a[i + 1] += div; } } reverse(a.begin(), a.end()); fill(dp, dp + n + 1, 0); dp[0] = 1; for (int i = 0; i < n; ++i) { // case 1: no dp[i + 1] += dp[i]; // case 2: yes if (a[i] >= x) { dp[i + 1] += dp[i]; continue; } ll lack = x; for (int j = i; j < n; ++j) { lack -= a[j]; if (lack <= 0) { dp[j + 1] += dp[i]; lack += x; } lack *= 2; if (lack > 3 * x) { break; } } } return dp[n]; }

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:27:19: error: request for member 'begin' in 'a', which is of non-class type 'll [64]' {aka 'long long int [64]'}
   27 |         reverse(a.begin(), a.end());
      |                   ^~~~~
biscuits.cpp:27:30: error: request for member 'end' in 'a', which is of non-class type 'll [64]' {aka 'long long int [64]'}
   27 |         reverse(a.begin(), a.end());
      |                              ^~~