답안 #63402

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
63402 2018-08-01T16:51:58 Z qkxwsm Zalmoxis (BOI18_zalmoxis) C++17
100 / 100
901 ms 25136 KB
/*
PROG: source
LANG: C++11
_____
.'     '.
/  0   0  \
|     ^     |
|  \     /  |
\  '---'  /
'._____.'
*/
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;

struct chash
{
        int operator()(int x) const
        {
                x ^= (x >> 20) ^ (x >> 12);
                return x ^ (x >> 7) ^ (x >> 4);
        }
        int operator()(long long x) const
        {
                return x ^ (x >> 32);
        }
};

template<typename T> using orderedset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T, typename U> using hashtable = gp_hash_table<T, U, chash>;

template<class T>
void readi(T &x)
{
        T input = 0;
        bool negative = false;
        char c = ' ';
        while (c < '-')
        {
                c = getchar();
        }
        if (c == '-')
        {
                negative = true;
                c = getchar();
        }
        while (c >= '0')
        {
                input = input * 10 + (c - '0');
                c = getchar();
        }
        if (negative)
        {
                input = -input;
        }
        x = input;
}
template<class T>
void printi(T output)
{
        if (output == 0)
        {
                putchar('0');
                return;
        }
        if (output < 0)
        {
                putchar('-');
                output = -output;
        }
        int aout[20];
        int ilen = 0;
        while(output)
        {
                aout[ilen] = ((output % 10));
                output /= 10;
                ilen++;
        }
        for (int i = ilen - 1; i >= 0; i--)
        {
                putchar(aout[i] + '0');
        }
        return;
}
template<class T>
void ckmin(T &a, T b)
{
        a = min(a, b);
}
template<class T>
void ckmax(T &a, T b)
{
        a = max(a, b);
}
template<class T, class U>
T normalize(T x, U mod = 1000000007)
{
        return (((x % mod) + mod) % mod);
}
long long randomizell(long long mod)
{
        return ((1ll << 45) * rand() + (1ll << 30) * rand() + (1ll << 15) * rand() + rand()) % mod;
}
int randomize(int mod)
{
        return ((1ll << 15) * rand() + rand()) % mod;
}

#define y0 ___y0
#define y1 ___y1
#define MP make_pair
#define MT make_tuple
#define PB push_back
#define PF push_front
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second
#define debug(x) cerr << #x << " = " << x << endl;

const long double PI = 4.0 * atan(1.0);
const long double EPS = 1e-10;

#define MAGIC 347
#define SINF 10007
#define CO 1000007
#define INF 1000000007
#define BIG 1000000931
#define LARGE 1696969696967ll
#define GIANT 2564008813937411ll
#define LLINF 2696969696969696969ll
#define MAXN 1000013

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pdd;

int N, K;
int arr[MAXN];
int W = (1 << 30);
vector<pii> ans;

bool cross(int a, int b)
{
        return ((__builtin_clz(a) != __builtin_clz(b)) && (__builtin_popcount(b) != 1));
}
int32_t main()
{
        ios_base::sync_with_stdio(0);
        srand(time(0));
        //	cout << fixed << setprecision(10);
        //	cerr << fixed << setprecision(10);
        if (fopen("input.in", "r"))
        {
                freopen ("input.in", "r", stdin);
                freopen ("output.out", "w", stdout);
        }
        // cerr << (1 << (32 - __builtin_clz(4))) - 4 << endl;
        // cerr << (1 << (32 - __builtin_clz(5))) - 5 << endl;
        // return 0;
        cin >> N >> K;
        for (int i = 0; i < N; i++)
        {
                cin >> arr[i];
        }
        int sum = 0;
        for (int i = 0; i < N; i++)
        {
                //if sum + arr[i] is not divisible by (1 << arr[i])
                if ((sum) % (1 << arr[i]))
                {
                        //whoops, we're bad!
                        //smallest power of 2 STRICTLY greater than sum!
                        int up = (1 << arr[i]) - (sum % (1 << arr[i]));
                        for (int j = 0; j < 30; j++)
                        {
                                if (up & (1 << j))
                                {
                                        ans.PB({j, 1});
                                        sum += (1 << j);
                                        K--;
                                }
                        }
                }
                ans.PB({arr[i], 0});
                sum += (1 << (arr[i]));
        }
        for (int j = 0; j < 30; j++)
        {
                if ((W - sum) & (1 << j))
                {
                        ans.PB({j, 1});
                        K--;
                }
        }
        for (int i = 0; i < ans.size(); i++)
        {
                // cerr << "lmao " << ans[i].fi << ' ' << ans[i].se << endl;
                if (!ans[i].se)
                {
                        cout << ans[i].fi << ' ';
                        continue;
                }
                else
                {
                        multiset<int> ms;
                        ms.insert(ans[i].fi);
                        while(K && (*(prev(ms.end())) > 1))
                        {
                                int x = *(prev(ms.end()));
                                ms.erase(prev(ms.end()));
                                ms.insert(x - 1);
                                ms.insert(x - 1);
                                K--;
                        }
                        for (int x : ms)
                        {
                                cout << x << ' ';
                        }
                }
        }
        cout << '\n';
        //split W into K guys
        //it's beautiful if you can collapse them

        //	cerr << "time elapsed = " << (clock() / (CLOCKS_PER_SEC / 1000)) << " ms" << endl;
        return 0;
}

Compilation message

zalmoxis.cpp: In function 'int32_t main()':
zalmoxis.cpp:201:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < ans.size(); i++)
                         ~~^~~~~~~~~~~~
zalmoxis.cpp:160:25: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
                 freopen ("input.in", "r", stdin);
                 ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
zalmoxis.cpp:161:25: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
                 freopen ("output.out", "w", stdout);
                 ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 233 ms 14268 KB Output is correct
2 Correct 272 ms 14444 KB Output is correct
3 Correct 222 ms 14488 KB Output is correct
4 Correct 234 ms 14488 KB Output is correct
5 Correct 243 ms 14488 KB Output is correct
6 Correct 172 ms 14488 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 221 ms 14500 KB Output is correct
2 Correct 213 ms 14584 KB Output is correct
3 Correct 208 ms 14584 KB Output is correct
4 Correct 181 ms 14584 KB Output is correct
5 Correct 181 ms 14584 KB Output is correct
6 Correct 201 ms 14692 KB Output is correct
7 Correct 273 ms 14692 KB Output is correct
8 Correct 217 ms 14692 KB Output is correct
9 Correct 263 ms 14692 KB Output is correct
10 Correct 436 ms 19520 KB Output is correct
11 Correct 385 ms 19520 KB Output is correct
12 Correct 745 ms 25052 KB Output is correct
13 Correct 838 ms 25136 KB Output is correct
14 Correct 901 ms 25136 KB Output is correct