oj.uz

Submission #98979

# Submission time Handle Problem Language Result Execution time Memory
98979 2019-02-27T20:14:19 Z Benq Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
100 / 100
 189 ms 192504 KB 
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/rope>

using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
 
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;

typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;

template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= (a); i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto& a : x)

#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound

#define sz(x) (int)x.size()
#define beg(x) x.begin()
#define en(x) x.end()
#define all(x) beg(x), en(x)
#define resz resize

const int MOD = 1000000007; // 998244353
const ll INF = 1e18;
const int MX = 100001;
const ld PI = 4*atan((ld)1);

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); }

namespace input {
    template<class T> void re(complex<T>& x);
    template<class T1, class T2> void re(pair<T1,T2>& p);
    template<class T> void re(vector<T>& a);
    template<class T, size_t SZ> void re(array<T,SZ>& a);

    template<class T> void re(T& x) { cin >> x; }
    void re(double& x) { string t; re(t); x = stod(t); }
    void re(ld& x) { string t; re(t); x = stold(t); }
    template<class Arg, class... Args> void re(Arg& first, Args&... rest) { 
        re(first); re(rest...); 
    }

    template<class T> void re(complex<T>& x) { T a,b; re(a,b); x = cd(a,b); }
    template<class T1, class T2> void re(pair<T1,T2>& p) { re(p.f,p.s); }
    template<class T> void re(vector<T>& a) { F0R(i,sz(a)) re(a[i]); }
    template<class T, size_t SZ> void re(array<T,SZ>& a) { F0R(i,SZ) re(a[i]); }
}

using namespace input;

namespace output {
    template<class T1, class T2> void pr(const pair<T1,T2>& x);
    template<class T, size_t SZ> void pr(const array<T,SZ>& x);
    template<class T> void pr(const vector<T>& x);
    template<class T> void pr(const set<T>& x);
    template<class T1, class T2> void pr(const map<T1,T2>& x);

    template<class T> void pr(const T& x) { cout << x; }
    template<class Arg, class... Args> void pr(const Arg& first, const Args&... rest) { 
        pr(first); pr(rest...); 
    }

    template<class T1, class T2> void pr(const pair<T1,T2>& x) { 
        pr("{",x.f,", ",x.s,"}"); 
    }
    template<class T> void prContain(const T& x) {
        pr("{");
        bool fst = 1; trav(a,x) pr(!fst?", ":"",a), fst = 0; 
        pr("}");
    }
    template<class T, size_t SZ> void pr(const array<T,SZ>& x) { prContain(x); }
    template<class T> void pr(const vector<T>& x) { prContain(x); }
    template<class T> void pr(const set<T>& x) { prContain(x); }
    template<class T1, class T2> void pr(const map<T1,T2>& x) { prContain(x); }
    
    template<class Arg> void ps(const Arg& first) { pr(first,"\n"); } // print w/ spaces
    template<class Arg, class... Args> void ps(const Arg& first, const Args&... rest) { 
        pr(first," "); ps(rest...); 
    }
}

using namespace output;

namespace io {
    void setIn(string s) { freopen(s.c_str(),"r",stdin); }
    void setOut(string s) { freopen(s.c_str(),"w",stdout); }
    void setIO(string s = "") {
        ios_base::sync_with_stdio(0); cin.tie(0); // fast I/O
        if (sz(s)) { setIn(s+".in"), setOut(s+".out"); } // for USACO
    }
}

using namespace io;

namespace modOp {
    int ad(int a, int b, int mod = MOD) { return (a+b)%mod; }
    int sub(int a, int b, int mod = MOD) { return (a-b+mod)%mod; }
    int mul(int a, int b, int mod = MOD) { return (ll)a*b%mod; }
    
    int AD(int& a, int b, int mod = MOD) { return a = ad(a,b,mod); }
    int SUB(int& a, int b, int mod = MOD) { return a = sub(a,b,mod); }
    int MUL(int& a, int b, int mod = MOD) { return a = mul(a,b,mod); }
    
    int po (int b, int p, int mod = MOD) { return !p?1:mul(po(mul(b,b,mod),p/2,mod),p&1?b:1,mod); }
    int inv (int b, int mod = MOD) { return po(b,mod-2,mod); }
    
    int invGeneral(int a, int b) { // 0 < a < b, gcd(a,b) = 1
        if (a == 0) return b == 1 ? 0 : -1;
        int x = invGeneral(b%a,a); 
        return x == -1 ? -1 : ((1-(ll)b*x)/a+b)%b;
    }
}

using namespace modOp;

int N, dp[3][401][401][401];
string s;
vi S;
int co[3], pos[3][401], A[401], B[401], C[401];

int main() {
    // you should actually read the stuff at the bottom
    setIO(); re(N,s);
    trav(a,s) {
        if (a == 'R') S.pb(0);
        else if (a == 'G') S.pb(1);
        else S.pb(2);
    }
    int z = 0;
    trav(i,S) {
        if (z) A[z] = A[z-1], B[z] = B[z-1], C[z] = C[z-1];
        if (i == 0) A[z] ++;
        if (i == 1) B[z] ++;
        if (i == 2) C[z] ++;
        pos[i][co[i]] = z++;
        co[i] ++;
    }
    F0R(i,3) F0R(a,co[0]+1) F0R(b,co[1]+1) F0R(c,co[2]+1) dp[i][a][b][c] = MOD;
    dp[0][0][0][0] = 0;
    //ps(S,A[4],B[4],C[4],co[0],co[1],co[2]);
    F0R(a,co[0]+1) F0R(b,co[1]+1) F0R(c,co[2]+1) F0R(i,3) if (dp[i][a][b][c] != MOD) {
        //ps(i,a,b,c,dp[i][a][b][c]);
        int sum = a+b+c;
        if (a < co[0] && (sum == 0 || i != 0)) {
            // how many b's before pos[0][a]
            int res = dp[i][a][b][c];
            res += max(0,B[pos[0][a]]-b);
            res += max(0,C[pos[0][a]]-c);
            ckmin(dp[0][a+1][b][c],res);
        }
        if (b < co[1] && (sum == 0 || i != 1)) {
            int res = dp[i][a][b][c];
            res += max(0,A[pos[1][b]]-a);
            res += max(0,C[pos[1][b]]-c);
            ckmin(dp[1][a][b+1][c],res);
        }
        if (c < co[2] && (sum == 0 || i != 2)) {
            //ps("WHAT",a,b,c);
            int res = dp[i][a][b][c];
            res += max(0,A[pos[2][c]]-a);
            res += max(0,B[pos[2][c]]-b);
            ckmin(dp[2][a][b][c+1],res);
        }
    }
    int res = MOD;
    F0R(i,3) ckmin(res,dp[i][co[0]][co[1]][co[2]]);
    if (res == MOD) pr(-1);
    else pr(res);
    // you should actually read the stuff at the bottom
}

/* stuff you should look for
    * int overflow, array bounds
    * special cases (n=1?), set tle
    * do smth instead of nothing and stay organized
*/

Compilation message

joi2019_ho_t3.cpp: In function 'void io::setIn(std::__cxx11::string)':
joi2019_ho_t3.cpp:112:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     void setIn(string s) { freopen(s.c_str(),"r",stdin); }
                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp: In function 'void io::setOut(std::__cxx11::string)':
joi2019_ho_t3.cpp:113:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     void setOut(string s) { freopen(s.c_str(),"w",stdout); }
                             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 640 KB Output is correct
7 Correct 8 ms 512 KB Output is correct
8 Correct 2 ms 640 KB Output is correct
9 Correct 2 ms 640 KB Output is correct
10 Correct 2 ms 768 KB Output is correct
11 Correct 2 ms 640 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 640 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 2 ms 384 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 640 KB Output is correct
7 Correct 8 ms 512 KB Output is correct
8 Correct 2 ms 640 KB Output is correct
9 Correct 2 ms 640 KB Output is correct
10 Correct 2 ms 768 KB Output is correct
11 Correct 2 ms 640 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 640 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 4 ms 2816 KB Output is correct
19 Correct 4 ms 2304 KB Output is correct
20 Correct 3 ms 2688 KB Output is correct
21 Correct 4 ms 2816 KB Output is correct
22 Correct 3 ms 2048 KB Output is correct
23 Correct 4 ms 2560 KB Output is correct
24 Correct 3 ms 1920 KB Output is correct
25 Correct 6 ms 4864 KB Output is correct
26 Correct 5 ms 5120 KB Output is correct
27 Correct 5 ms 3712 KB Output is correct
28 Correct 30 ms 2816 KB Output is correct
29 Correct 4 ms 2688 KB Output is correct
30 Correct 4 ms 2688 KB Output is correct
31 Correct 5 ms 2304 KB Output is correct
32 Correct 4 ms 2816 KB Output is correct
33 Correct 5 ms 4736 KB Output is correct
34 Correct 5 ms 4352 KB Output is correct
35 Correct 4 ms 3200 KB Output is correct
36 Correct 4 ms 2304 KB Output is correct
37 Correct 3 ms 2048 KB Output is correct
38 Correct 3 ms 2432 KB Output is correct
39 Correct 4 ms 2816 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 4 ms 2560 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 135 ms 192320 KB Output is correct
3 Correct 135 ms 191480 KB Output is correct
4 Correct 189 ms 192328 KB Output is correct
5 Correct 134 ms 192356 KB Output is correct
6 Correct 150 ms 192376 KB Output is correct
7 Correct 147 ms 191344 KB Output is correct
8 Correct 141 ms 191396 KB Output is correct
9 Correct 136 ms 190504 KB Output is correct
10 Correct 152 ms 192504 KB Output is correct
11 Correct 136 ms 192380 KB Output is correct
12 Correct 37 ms 52356 KB Output is correct
13 Correct 66 ms 91256 KB Output is correct
14 Correct 101 ms 131612 KB Output is correct
15 Correct 134 ms 192336 KB Output is correct
16 Correct 141 ms 192376 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 2 ms 640 KB Output is correct
7 Correct 8 ms 512 KB Output is correct
8 Correct 2 ms 640 KB Output is correct
9 Correct 2 ms 640 KB Output is correct
10 Correct 2 ms 768 KB Output is correct
11 Correct 2 ms 640 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 640 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 4 ms 2816 KB Output is correct
19 Correct 4 ms 2304 KB Output is correct
20 Correct 3 ms 2688 KB Output is correct
21 Correct 4 ms 2816 KB Output is correct
22 Correct 3 ms 2048 KB Output is correct
23 Correct 4 ms 2560 KB Output is correct
24 Correct 3 ms 1920 KB Output is correct
25 Correct 6 ms 4864 KB Output is correct
26 Correct 5 ms 5120 KB Output is correct
27 Correct 5 ms 3712 KB Output is correct
28 Correct 30 ms 2816 KB Output is correct
29 Correct 4 ms 2688 KB Output is correct
30 Correct 4 ms 2688 KB Output is correct
31 Correct 5 ms 2304 KB Output is correct
32 Correct 4 ms 2816 KB Output is correct
33 Correct 5 ms 4736 KB Output is correct
34 Correct 5 ms 4352 KB Output is correct
35 Correct 4 ms 3200 KB Output is correct
36 Correct 4 ms 2304 KB Output is correct
37 Correct 3 ms 2048 KB Output is correct
38 Correct 3 ms 2432 KB Output is correct
39 Correct 4 ms 2816 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 4 ms 2560 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 135 ms 192320 KB Output is correct
44 Correct 135 ms 191480 KB Output is correct
45 Correct 189 ms 192328 KB Output is correct
46 Correct 134 ms 192356 KB Output is correct
47 Correct 150 ms 192376 KB Output is correct
48 Correct 147 ms 191344 KB Output is correct
49 Correct 141 ms 191396 KB Output is correct
50 Correct 136 ms 190504 KB Output is correct
51 Correct 152 ms 192504 KB Output is correct
52 Correct 136 ms 192380 KB Output is correct
53 Correct 37 ms 52356 KB Output is correct
54 Correct 66 ms 91256 KB Output is correct
55 Correct 101 ms 131612 KB Output is correct
56 Correct 134 ms 192336 KB Output is correct
57 Correct 141 ms 192376 KB Output is correct
58 Correct 82 ms 76548 KB Output is correct
59 Correct 104 ms 97020 KB Output is correct
60 Correct 87 ms 88184 KB Output is correct
61 Correct 92 ms 85112 KB Output is correct
62 Correct 131 ms 187744 KB Output is correct
63 Correct 133 ms 184924 KB Output is correct
64 Correct 139 ms 161656 KB Output is correct
65 Correct 122 ms 140508 KB Output is correct
66 Correct 91 ms 86520 KB Output is correct
67 Correct 106 ms 83036 KB Output is correct
68 Correct 94 ms 88952 KB Output is correct
69 Correct 89 ms 85752 KB Output is correct
70 Correct 100 ms 92792 KB Output is correct
71 Correct 85 ms 84472 KB Output is correct
72 Correct 37 ms 43648 KB Output is correct
73 Correct 4 ms 2944 KB Output is correct