Submission #493699

#	Time	Username	Problem	Language	Result	Execution time	Memory
493699		SangTin	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	42.86 / 100	1103 ms	41600 KiB

brunhilda

#include <bits/stdc++.h>

using namespace std;

#define name "TRACKS"
#define endl '\n'
#define ednl endl
#define long long long
#define memset(a, x) memset(a, (x), sizeof(a));
#define inoutf freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout);
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define IN(a, b, c) (a <= b && b <= c)

template<typename T, typename U> inline bool amin(T &x, U y) { if(y >= x) return 0; x = y; return 1;}
template<typename T, typename U> inline bool amax(T &x, U y) { if(x >= y) return 0; x = y; return 1;}
template<typename T> inline void read(T& x){
    bool Neg = false;
    char c;
    for (c = getchar(); c < '0' | c > '9'; c = getchar())
        if (c == '-') Neg = !Neg;
    x = c - '0';
    for (c = getchar(); c >= '0' && c <= '9'; c = getchar())
        x = x * 10 + c - '0';
    if (Neg) x = -x;
}

const int M = 1e5 + 83, N = 1e7 + 83;
int p[M], spf[N], m, dp[N];

int cal(int n){
    if (!n) return 0;

    int cur = m,  Max = 0;
    for (int i = 1; i <= m; ++i){
        if (n % p[i]) amax(Max, n % p[i]);
    }
    int &res = dp[n];
    if (res >= -1) return res;
    if (!Max) return (res = -1);
//    cout << n << ' ' << Max << '\n';
    res = cal(n - Max);
    if (res != -1) ++res;
    return res;
}

int Solve(){
    int q; cin >> m >> q;
    for (int i = 1; i <= m; ++i) cin >> p[i];
    sort(p + 1, p + m + 1);
    memset(dp, -0x3f);
    while (q--){
        int n; cin >> n;
        int tmp = cal(n);
        if (tmp == -1) cout << "oo\n";
        else cout << tmp << endl;
    }

    return 0;
}

int main(){
    fastio;

    int t = 1;
//    cin >> t;
    while (t--){
        Solve();
    }

    return 0;
}

Compilation message (stderr)

brunhilda.cpp: In function 'int cal(int)':
brunhilda.cpp:33:9: warning: unused variable 'cur' [-Wunused-variable]
   33 |     int cur = m,  Max = 0;
      |         ^~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 2.857142857142857 / 60