oj.uz

답안 #226043

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
226043 2020-04-22T11:31:06 Z Ruxandra985 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
100 / 100
 492 ms 196708 KB 
#include <bits/stdc++.h>
#define INF 2000000000
using namespace std;

vector <int> v[3];
int dp[3][410][410][410];
char s[430];


int calcul (int nr0 , int nr1 , int nr2 , int curr){

    int poz , st , dr , mid;

    if (curr == 0)
        curr = v[0][nr0];
    else if (curr == 1)
        curr = v[1][nr1];
    else curr = v[2][nr2];

    /// curr e poz initiala

    poz = curr;
    if (!v[0].empty()){
        st = 0;
        dr = nr0 - 1;
        while (st <= dr){
            mid = (st + dr) / 2;
            if (v[0][mid] <= curr)
                st = mid + 1;
            else dr = mid - 1;
        }

        poz += (nr0 - st); /// st = primul mai mare decat curr
    }

    if (!v[1].empty()){
        st = 0;
        dr = nr1 - 1;
        while (st <= dr){
            mid = (st + dr) / 2;
            if (v[1][mid] <= curr)
                st = mid + 1;
            else dr = mid - 1;
        }

        poz += (nr1 - st); /// st = primul mai mare decat curr
    }

    if (!v[2].empty()){
        st = 0;
        dr = nr2 - 1;
        while (st <= dr){
            mid = (st + dr) / 2;
            if (v[2][mid] <= curr)
                st = mid + 1;
            else dr = mid - 1;
        }

        poz += (nr2 - st); /// st = primul mai mare decat curr

    }


    return poz - (nr0 + nr1 + nr2 + 1);
}
int main()
{
    FILE *fin = stdin;
    FILE *fout = stdout;
    int n , i , sum , j , k , sol;
    fscanf (fin,"%d\n",&n);
    fgets (s + 1 , 420 , fin); /// hehe

    for (i = n ; i ; i--){

        if (s[i] == 'R'){
            v[0].push_back(i);
        }
        else if (s[i] == 'G'){
            v[1].push_back(i);
        }
        else {
            v[2].push_back(i);
        }
    }

    reverse(v[0].begin() , v[0].end());
    reverse(v[1].begin() , v[1].end());
    reverse(v[2].begin() , v[2].end());


    /// dp[i][j][k][0 / 1 / 2] = i 0 , j 1 , k 2 , current e 0 / 1 / 2

    for (sum = 1 ; sum <= n ; sum++){

        for (i = 0 ; i <= v[0].size() ; i++){

            for (j = 0 ; j <= v[1].size() && i + j <= sum ; j++){

                k = sum - i - j;
                if (k >= 0 && k <= v[2].size()){
                    dp[0][i][j][k] = dp[1][i][j][k] = dp[2][i][j][k] = INF;
                }

            }

        }

    }

    if (!v[0].empty())
        dp[0][1][0][0] = v[0][0] - 1;

    if (!v[1].empty())
        dp[1][0][1][0] = v[1][0] - 1;

    if (!v[2].empty())
        dp[2][0][0][1] = v[2][0] - 1;

    /// initializari

    sol = 2000000000;

    for (sum = 2 ; sum <= n ; sum++){

        for (i = 0 ; i <= v[0].size() ; i++){

            for (j = 0 ; j <= v[1].size() && i + j <= sum ; j++){

                k = sum - i - j;
                if (k < 0 || k > v[2].size())
                    continue;


                /// acum calculezi propriu zis

                if (i){ /// incerci sa pui 0

                    dp[0][i][j][k] = min(dp[1][i - 1][j][k] , dp[2][i - 1][j][k]) + calcul(i - 1 , j , k , 0);

                }

                if (j){ /// incerci sa pui 1

                    dp[1][i][j][k] = min(dp[0][i][j - 1][k] , dp[2][i][j - 1][k]) + calcul(i , j - 1 , k , 1);

                }

                if (k){ /// incerci sa pui 2

                    dp[2][i][j][k] = min(dp[0][i][j][k - 1] , dp[1][i][j][k - 1]) + calcul(i , j , k - 1 , 2);

                }


                if (sum == n){
                    sol = min( min(sol , dp[0][i][j][k]) , min(dp[1][i][j][k] , dp[2][i][j][k]) );
                }


            }

        }

    }

    if (sol == INF)
        sol = -1;

    if (n == 1)
        sol = 0;

    fprintf (fout,"%d",sol);

    return 0;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:96:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0 ; i <= v[0].size() ; i++){
                      ~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:98:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (j = 0 ; j <= v[1].size() && i + j <= sum ; j++){
                          ~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:101:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if (k >= 0 && k <= v[2].size()){
                               ~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:126:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0 ; i <= v[0].size() ; i++){
                      ~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:128:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (j = 0 ; j <= v[1].size() && i + j <= sum ; j++){
                          ~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:131:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if (k < 0 || k > v[2].size())
                              ~~^~~~~~~~~~~~~
joi2019_ho_t3.cpp:71:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf (fin,"%d\n",&n);
     ~~~~~~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:72:11: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     fgets (s + 1 , 420 , fin); /// hehe
     ~~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 512 KB Output is correct
6 Correct 5 ms 640 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 4 ms 512 KB Output is correct
9 Correct 4 ms 640 KB Output is correct
10 Correct 5 ms 768 KB Output is correct
11 Correct 5 ms 640 KB Output is correct
12 Correct 5 ms 512 KB Output is correct
13 Correct 5 ms 512 KB Output is correct
14 Correct 5 ms 640 KB Output is correct
15 Correct 4 ms 512 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 4 ms 384 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 512 KB Output is correct
6 Correct 5 ms 640 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 4 ms 512 KB Output is correct
9 Correct 4 ms 640 KB Output is correct
10 Correct 5 ms 768 KB Output is correct
11 Correct 5 ms 640 KB Output is correct
12 Correct 5 ms 512 KB Output is correct
13 Correct 5 ms 512 KB Output is correct
14 Correct 5 ms 640 KB Output is correct
15 Correct 4 ms 512 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 7 ms 2816 KB Output is correct
19 Correct 6 ms 2304 KB Output is correct
20 Correct 7 ms 2688 KB Output is correct
21 Correct 7 ms 2944 KB Output is correct
22 Correct 6 ms 2048 KB Output is correct
23 Correct 7 ms 2560 KB Output is correct
24 Correct 6 ms 1920 KB Output is correct
25 Correct 6 ms 4992 KB Output is correct
26 Correct 7 ms 5120 KB Output is correct
27 Correct 7 ms 3712 KB Output is correct
28 Correct 6 ms 2852 KB Output is correct
29 Correct 6 ms 2688 KB Output is correct
30 Correct 6 ms 2792 KB Output is correct
31 Correct 6 ms 2304 KB Output is correct
32 Correct 6 ms 2816 KB Output is correct
33 Correct 6 ms 4736 KB Output is correct
34 Correct 7 ms 4352 KB Output is correct
35 Correct 7 ms 3200 KB Output is correct
36 Correct 7 ms 2304 KB Output is correct
37 Correct 6 ms 2048 KB Output is correct
38 Correct 6 ms 2560 KB Output is correct
39 Correct 7 ms 2816 KB Output is correct
40 Correct 5 ms 512 KB Output is correct
41 Correct 6 ms 2688 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 113 ms 196600 KB Output is correct
3 Correct 112 ms 195704 KB Output is correct
4 Correct 112 ms 196600 KB Output is correct
5 Correct 119 ms 196708 KB Output is correct
6 Correct 110 ms 196600 KB Output is correct
7 Correct 110 ms 195704 KB Output is correct
8 Correct 110 ms 195704 KB Output is correct
9 Correct 111 ms 194680 KB Output is correct
10 Correct 113 ms 196600 KB Output is correct
11 Correct 110 ms 196600 KB Output is correct
12 Correct 31 ms 53376 KB Output is correct
13 Correct 53 ms 93304 KB Output is correct
14 Correct 77 ms 134520 KB Output is correct
15 Correct 112 ms 196600 KB Output is correct
16 Correct 113 ms 196600 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 512 KB Output is correct
6 Correct 5 ms 640 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 4 ms 512 KB Output is correct
9 Correct 4 ms 640 KB Output is correct
10 Correct 5 ms 768 KB Output is correct
11 Correct 5 ms 640 KB Output is correct
12 Correct 5 ms 512 KB Output is correct
13 Correct 5 ms 512 KB Output is correct
14 Correct 5 ms 640 KB Output is correct
15 Correct 4 ms 512 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 7 ms 2816 KB Output is correct
19 Correct 6 ms 2304 KB Output is correct
20 Correct 7 ms 2688 KB Output is correct
21 Correct 7 ms 2944 KB Output is correct
22 Correct 6 ms 2048 KB Output is correct
23 Correct 7 ms 2560 KB Output is correct
24 Correct 6 ms 1920 KB Output is correct
25 Correct 6 ms 4992 KB Output is correct
26 Correct 7 ms 5120 KB Output is correct
27 Correct 7 ms 3712 KB Output is correct
28 Correct 6 ms 2852 KB Output is correct
29 Correct 6 ms 2688 KB Output is correct
30 Correct 6 ms 2792 KB Output is correct
31 Correct 6 ms 2304 KB Output is correct
32 Correct 6 ms 2816 KB Output is correct
33 Correct 6 ms 4736 KB Output is correct
34 Correct 7 ms 4352 KB Output is correct
35 Correct 7 ms 3200 KB Output is correct
36 Correct 7 ms 2304 KB Output is correct
37 Correct 6 ms 2048 KB Output is correct
38 Correct 6 ms 2560 KB Output is correct
39 Correct 7 ms 2816 KB Output is correct
40 Correct 5 ms 512 KB Output is correct
41 Correct 6 ms 2688 KB Output is correct
42 Correct 4 ms 384 KB Output is correct
43 Correct 113 ms 196600 KB Output is correct
44 Correct 112 ms 195704 KB Output is correct
45 Correct 112 ms 196600 KB Output is correct
46 Correct 119 ms 196708 KB Output is correct
47 Correct 110 ms 196600 KB Output is correct
48 Correct 110 ms 195704 KB Output is correct
49 Correct 110 ms 195704 KB Output is correct
50 Correct 111 ms 194680 KB Output is correct
51 Correct 113 ms 196600 KB Output is correct
52 Correct 110 ms 196600 KB Output is correct
53 Correct 31 ms 53376 KB Output is correct
54 Correct 53 ms 93304 KB Output is correct
55 Correct 77 ms 134520 KB Output is correct
56 Correct 112 ms 196600 KB Output is correct
57 Correct 113 ms 196600 KB Output is correct
58 Correct 486 ms 78328 KB Output is correct
59 Correct 490 ms 99028 KB Output is correct
60 Correct 492 ms 90104 KB Output is correct
61 Correct 483 ms 87164 KB Output is correct
62 Correct 123 ms 191736 KB Output is correct
63 Correct 148 ms 188920 KB Output is correct
64 Correct 264 ms 165112 KB Output is correct
65 Correct 365 ms 143700 KB Output is correct
66 Correct 293 ms 88332 KB Output is correct
67 Correct 310 ms 84856 KB Output is correct
68 Correct 345 ms 90872 KB Output is correct
69 Correct 359 ms 87800 KB Output is correct
70 Correct 379 ms 94868 KB Output is correct
71 Correct 448 ms 86392 KB Output is correct
72 Correct 132 ms 44664 KB Output is correct
73 Correct 25 ms 2944 KB Output is correct