Submission #1356764

#	Time	Username	Problem	Language	Result	Execution time	Memory
1356764		Sacharlemagne	Counting Mushrooms (IOI20_mushrooms)	C++20	Compilation error	0 ms	0 KiB

mushrooms

#include "biscuits.h"

using namespace std;

typedef long long ll;
typedef vector<ll> vll;
ll ans = 0;
vll A;
void backtrack(int ind, ll x, vll &a) {
    if (ind == a.size()-1 && a[ind] < x) return;
    if (a[ind] >= x) {
        ++ans;
        // i must be x
        ll ad = (a[ind]-x)/2;
        if (a.size() == ind+1) a.push_back(0);
        a[ind+1] += ad;
        backtrack(ind+1, x, a);
        a[ind+1] -= ad;
        if (a.size() == ind+2 && !a[ind+1]) a.pop_back();
    }
    if (a.size() == ind+1) a.push_back(0);
    a[ind+1] += a[ind]/2;
    backtrack(ind+1, x, a);
    a[ind+1] -= a[ind]/2;
    if (a.size() == ind+2 && !a[ind+1]) a.pop_back();
}

ll count_tastiness(ll x, vll a) {
    while (!a.back()) a.pop_back();
    if (a.empty()) return 1;
    ans = 0;
    backtrack(0, x, a);
    return ans + 1;
}

Compilation message (stderr)

mushrooms.cpp:1:10: fatal error: biscuits.h: No such file or directory
    1 | #include "biscuits.h"
      |          ^~~~~~~~~~~~
compilation terminated.