Submission #429133

#	Time	Username	Problem	Language	Result	Execution time	Memory
429133		abdzag	Packing Biscuits (IOI20_biscuits)	C++17	0 / 100	990 ms	368 KiB

biscuits

#include<bits/stdc++.h>
#include<unordered_map>
#include<unordered_set>
#include "biscuits.h"
#define rep(i,a,b) for(int i=int(a);i<int(b);i++)
#define rrep(i,a,b) for(int i=int(a);i>int(b);i--)
#define trav(a,v) for(auto& a: v)
#define sz(v) v.size()
#define all(v) v.begin(),v.end()
#define vi vector<int>

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const long long inf = 2e9;

using namespace std;

long long count_tastiness(long long x, std::vector<long long> a) {
	ll ans = 1;
	vector<ll> cur;
	rep(i, 1, 1e5 + 1) {
		cur = a;
		bool done = true;
		rep(j, 0, 18) {
			if (!((1 << j) & i))continue;
			if (j >= a.size()) {
				done = false;
				break;
			}
			rrep(o, j - 1, -1) {
				if (cur[j] >= x)break;
				if((1<<o)&i)cur[j] += (cur[o] - x) / (1 << (j - o));
				else cur[j] += (cur[o]) / (1 << (j - o));
			}
			if (cur[j] < x) {
				done = false;
				break;
			}
		}
		ans += done;
	}
	return ans;
}

//int main() {
//	ll q;
//	cin >> q;
//	rep(i, 0, q) {
//		ll n, x;
//		cin >> n >> x;
//		vector<ll> v(n);
//		rep(i, 0, n)cin >> v[i];
//		cout << count_tastiness(x, v) << endl;
//	}
//}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:27:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |    if (j >= a.size()) {
      |        ~~^~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23