oj.uz

Submission #294482

# Submission time Handle Problem Language Result Execution time Memory
294482 2020-09-09T00:55:46 Z ant101 Dango Maker (JOI18_dango_maker) C++14
100 / 100
 828 ms 44928 KB 
#include <iostream>
#include <algorithm>
#include <cstring>
#include <iomanip>
#include <fstream>
#include <cmath>
#include <vector>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <map>
#include <stack>
#include <queue>
#include <assert.h>
#include <limits>
#include <cstdio>
#include <complex>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef double db;
typedef string str;

typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
#define mp make_pair
#define f first
#define s second

typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<ld> vd;
typedef vector<str> vs;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<pd> vpd;

#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) (x).rbegin(), (x).rend()
#define rsz resize
#define ins insert
#define ft front()
#define bk back()
#define pf push_front
#define pb push_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

const int MOD = 1e9+7; // 998244353; // = (119<<23)+1
const int MX = 3e3+5;
const ll INF = 1e18;
const ld PI = 4*atan((ld)1);
const int dx[4] = {0,1,0,-1}, dy[4] = {1,0,-1,0};


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
        // cin.exceptions(cin.failbit); // ex. throws exception when you try to read letter into int
        if (sz(s)) {
            setIn(s+".in");
            setOut(s+".out");
        } // for USACO
    }
}

using namespace io;

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]); }
}

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; for (const auto& a: x) pr(!fst?", ":"",a), fst = 0; // const needed for vector<bool>
        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); }
    
    void ps() { pr("\n"); }
    template<class Arg> void ps(const Arg& first) {
        pr(first); ps(); // no space at end of line
    }
    template<class Arg, class... Args> void ps(const Arg& first, const Args&... rest) {
        pr(first," "); ps(rest...); // print w/ spaces
    }
}

using namespace output;

using namespace input;

ll add(ll a, ll b) {
    a += b;
    if(a >= MOD) {
        a -= MOD;
    }
    return a;
}
ll sub(ll a, ll b) {
    a -= b;
    if(a < 0) {
        a += MOD;
    }
    return a;
}

ll mul(ll a, ll b) {
    return (a * b)%MOD;
}

void add_self(ll& a, ll b) {
    a = add(a, b);
}
void sub_self(ll& a, ll b) {
    a = sub(a, b);
}
void mul_self(ll& a, ll b) {
    a = mul(a, b);
}

// 0-2 cooldown on the right dumplings
// 3-5 cooldown on the down dumplings (subtract 3)

char grid[MX][MX];
ll N, M;
vector<pair<bool, bool>> diagonals[2*MX];

bool inBounds(ll i, ll j) {
    if (i >= 0 && j >= 0 && i < N && j < M) {
        return true;
    } else {
        return false;
    }
}

int main() {
    setIO();
    re(N, M);
    F0R (i, N) {
        F0R (j, M) {
            re(grid[i][j]);
        }
    }
    F0R (col, M) {
        ll i = 0, j = col;
        do {
            bool goright = false, godown = false;
            if (j + 2 < M && grid[i][j] == 'R' && grid[i][j+1] == 'G' && grid[i][j+2] == 'W') {
                goright = true;
            }
            if (i + 2 < N && grid[i][j] == 'R' && grid[i+1][j] == 'G' && grid[i+2][j] == 'W') {
                godown = true;
            }
            i++;
            j--;
            diagonals[col].pb({goright, godown});
        } while (inBounds(i, j));
    }
    F0R (row, N) {
        if (row == 0) {
            continue;
        }
        ll i = row, j = M-1;
        do {
            bool goright = false, godown = false;
            if (j + 2 < M && grid[i][j] == 'R' && grid[i][j+1] == 'G' && grid[i][j+2] == 'W') {
                goright = true;
            }
            if (i + 2 < N && grid[i][j] == 'R' && grid[i+1][j] == 'G' && grid[i+2][j] == 'W') {
                godown = true;
            }
            i++;
            j--;
            diagonals[M+row-1].pb({goright, godown});
        } while (inBounds(i, j));
    }
    ll ans = 0;
    F0R (col, M+N-1) {
        vector<vector<ll>> dp(diagonals[col].size()+1, vector<ll>(3, 0));
        ll auxbest = 0;
        R0F (i, diagonals[col].size()) {
            F0R (j, 3) {
                if (diagonals[col][i].f && j == 0) {
                    dp[i][j] = max(dp[i][j], 1+dp[i+1][j]);
                }
                if (diagonals[col][i].s) {
                    dp[i][j] = max(dp[i][j], 1+dp[i+1][2]);
                }
                dp[i][j] = max(dp[i][j], dp[i+1][max(0, j-1)]);
                auxbest = max(auxbest, dp[i][j]);
            }
        }
        ans+=auxbest;
    }
    ps(ans);
    return 0;
}

/*
 
 F0R (col, M) {
 vector<vector<vector<ll>>> dp(diagonals[col].size()+1, vector<vector<ll>>(3, vector<ll>(3, 0)));
 ll auxbest = 0;
 R0F (i, diagonals[col].size()) {
 F0R (j, 3) {
 F0R (k, 3) {
 if (diagonals[col][i].f && j == 0) {
 dp[i][j][k] = max(dp[i][j][k], 1+dp[i][j][2]);
 }
 if (diagonals[col][i].s && k == 0) {
 dp[i][j][k] = max(dp[i][j][k], 1+dp[i][2][k]);
 }
 dp[i][j][k] = max(dp[i][j][k], dp[i][max(j-1, 0)][max(k-1, 0)]);
 auxbest = max(auxbest, dp[i][j][k]);
 }
 }
 }
 }
 */

Compilation message

dango_maker.cpp: In function 'void io::setIn(std::string)':
dango_maker.cpp:67:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   67 |     void setIn(string s) { freopen(s.c_str(),"r",stdin); }
      |                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
dango_maker.cpp: In function 'void io::setOut(std::string)':
dango_maker.cpp:68:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   68 |     void setOut(string s) { freopen(s.c_str(),"w",stdout); }
      |                             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 512 KB Output is correct
3 Correct 0 ms 512 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 0 ms 512 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 0 ms 512 KB Output is correct
10 Correct 0 ms 512 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 512 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 512 KB Output is correct
3 Correct 0 ms 512 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 0 ms 512 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 0 ms 512 KB Output is correct
10 Correct 0 ms 512 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 0 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 0 ms 512 KB Output is correct
26 Correct 0 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 0 ms 512 KB Output is correct
29 Correct 0 ms 512 KB Output is correct
30 Correct 1 ms 640 KB Output is correct
31 Correct 0 ms 512 KB Output is correct
32 Correct 0 ms 512 KB Output is correct
33 Correct 0 ms 512 KB Output is correct
34 Correct 0 ms 512 KB Output is correct
35 Correct 1 ms 512 KB Output is correct
36 Correct 1 ms 512 KB Output is correct
37 Correct 1 ms 512 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 0 ms 512 KB Output is correct
40 Correct 0 ms 512 KB Output is correct
41 Correct 0 ms 512 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 0 ms 512 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 0 ms 512 KB Output is correct
46 Correct 1 ms 512 KB Output is correct
47 Correct 1 ms 512 KB Output is correct
48 Correct 0 ms 512 KB Output is correct
49 Correct 1 ms 512 KB Output is correct
50 Correct 1 ms 512 KB Output is correct
51 Correct 1 ms 512 KB Output is correct
52 Correct 1 ms 512 KB Output is correct
53 Correct 1 ms 512 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 512 KB Output is correct
3 Correct 0 ms 512 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 0 ms 512 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 0 ms 512 KB Output is correct
10 Correct 0 ms 512 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 0 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 0 ms 512 KB Output is correct
26 Correct 0 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 0 ms 512 KB Output is correct
29 Correct 0 ms 512 KB Output is correct
30 Correct 1 ms 640 KB Output is correct
31 Correct 0 ms 512 KB Output is correct
32 Correct 0 ms 512 KB Output is correct
33 Correct 0 ms 512 KB Output is correct
34 Correct 0 ms 512 KB Output is correct
35 Correct 1 ms 512 KB Output is correct
36 Correct 1 ms 512 KB Output is correct
37 Correct 1 ms 512 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 0 ms 512 KB Output is correct
40 Correct 0 ms 512 KB Output is correct
41 Correct 0 ms 512 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 0 ms 512 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 0 ms 512 KB Output is correct
46 Correct 1 ms 512 KB Output is correct
47 Correct 1 ms 512 KB Output is correct
48 Correct 0 ms 512 KB Output is correct
49 Correct 1 ms 512 KB Output is correct
50 Correct 1 ms 512 KB Output is correct
51 Correct 1 ms 512 KB Output is correct
52 Correct 1 ms 512 KB Output is correct
53 Correct 1 ms 512 KB Output is correct
54 Correct 1 ms 640 KB Output is correct
55 Correct 6 ms 9344 KB Output is correct
56 Correct 2 ms 640 KB Output is correct
57 Correct 6 ms 6400 KB Output is correct
58 Correct 91 ms 6136 KB Output is correct
59 Correct 828 ms 36000 KB Output is correct
60 Correct 813 ms 44668 KB Output is correct
61 Correct 825 ms 44928 KB Output is correct
62 Correct 1 ms 640 KB Output is correct
63 Correct 786 ms 43620 KB Output is correct
64 Correct 780 ms 44804 KB Output is correct
65 Correct 776 ms 44688 KB Output is correct
66 Correct 811 ms 44668 KB Output is correct
67 Correct 793 ms 44624 KB Output is correct
68 Correct 798 ms 44752 KB Output is correct
69 Correct 809 ms 44668 KB Output is correct
70 Correct 91 ms 7160 KB Output is correct
71 Correct 89 ms 7160 KB Output is correct
72 Correct 90 ms 7288 KB Output is correct
73 Correct 89 ms 7160 KB Output is correct
74 Correct 90 ms 7288 KB Output is correct
75 Correct 88 ms 7160 KB Output is correct
76 Correct 90 ms 7160 KB Output is correct
77 Correct 90 ms 7288 KB Output is correct
78 Correct 106 ms 7288 KB Output is correct
79 Correct 92 ms 7160 KB Output is correct
80 Correct 88 ms 7160 KB Output is correct
81 Correct 89 ms 7288 KB Output is correct
82 Correct 91 ms 7160 KB Output is correct
83 Correct 89 ms 7160 KB Output is correct
84 Correct 93 ms 7288 KB Output is correct
85 Correct 90 ms 7160 KB Output is correct
86 Correct 92 ms 7288 KB Output is correct
87 Correct 91 ms 7160 KB Output is correct
88 Correct 88 ms 7160 KB Output is correct
89 Correct 88 ms 7160 KB Output is correct
90 Correct 91 ms 7288 KB Output is correct