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답안 #252997

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
252997 2020-07-26T15:22:29 Z hollwo_pelw Lamps (JOI19_lamps) C++17
100 / 100
 79 ms 67144 KB 
/*
 /+==================================================+\
//+--------------------------------------------------+\\
|.|\\...>>>>>>> Hollwo_Pelw(ass) 's code <<<<<<<...//|.|
\\+--------------------------------------------------+//
 \+==================================================+/
*/
#include <bits/stdc++.h>
using namespace std;
// type
typedef long long ll;
typedef long double ld;
// loop
//#define For(i, l, r)        for (int i = l; i < r; i++)
//#define ForE(i, l, r)       for (int i = l; i <= r; i++)
//#define Ford(i, r, l)       for (int i = r; i > l; i--)
//#define FordE(i, r, l)      for (int i = r; i >= l; i--)
//#define Fora(i, a)          for (auto i : a)
// I/O
#define open(file, in, out) if (fopen(file in, "r")) {        \
                                freopen(file in, "r", stdin);  \
                                freopen(file out, "w", stdout); \
                            }
#define FAST_IO             std::ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define setpre(n)           fixed << setprecision(n)
// pair
#define F                   first
#define S                   second
#define pii                 pair<int, int>
#define pll                 pair<ll, ll>
#define pdd                 pair<ld, ld>
// vector & !!?(string)
#define eb                  emplace_back
#define pb                  push_back
#define all(a)              a.begin(), a.end()
#define rall(a)             a.rbegin(), a.rend()
#define sz(a)               a.size()
#define len(a)              a.length()
// geometry calculate
#define pi                  acos(-1.0)
#define g_sin(a)            sin(a*pi/180)
#define g_cos(a)            cos(a*pi/180)
#define g_tan(a)            tan(a*pi/180)
// set val
#define ms0(a)              memset(a,        0, sizeof(a));
#define ms1(a)              memset(a,        1, sizeof(a));
#define msn1(a)             memset(a,       -1, sizeof(a));
#define msinf(a)            memset(a, 0x3f3f3f, sizeof(a));
// constant
const int mod1 = 998244353, mod = 1e9+7;
const int MAXN = 100005, MAXM = 200010;
// code
#define int long long

int dp[(int) 1e6 + 6][8];
int tr[8][8];
void Solve() {
    string a, b; int n;
    cin >> n >> a >> b;
    for (int i = 0; i < 8; i++){
        for (int j = 0; j < 8; j++){
            int t = (i | j) ^ i;
            while (t){
                tr[i][j] += t % 2;
                t /= 2;
            }
        }
    }

    for (int i = 0; i <= n; i++){
        for (int j = 0; j < 8; j++){
            dp[i][j] = 1e9;
        }
    }
    dp[0][0] = 0;
    for (int i = 1; i <= n; i++){
        if (a[i-1] == '1' & b[i-1] == '1'){
            for (int j = 0; j < 8; j++){
                dp[i][0] = min(dp[i][0], dp[i-1][j] + tr[j][0]);
                dp[i][2] = min(dp[i][2], dp[i-1][j] + tr[j][2]);
                dp[i][5] = min(dp[i][5], dp[i-1][j] + tr[j][5]);
            }
        }if (a[i-1] == '1' & b[i-1] == '0'){
            for (int j = 0; j < 8; j++){
                dp[i][1] = min(dp[i][1], dp[i-1][j] + tr[j][1]);
                dp[i][4] = min(dp[i][4], dp[i-1][j] + tr[j][4]);
                dp[i][6] = min(dp[i][6], dp[i-1][j] + tr[j][6]);
            }
        }if (a[i-1] == '0' & b[i-1] == '0'){
            for (int j = 0; j < 8; j++){
                dp[i][0] = min(dp[i][0], dp[i-1][j] + tr[j][0]);
                dp[i][1] = min(dp[i][1], dp[i-1][j] + tr[j][1]);
                dp[i][6] = min(dp[i][6], dp[i-1][j] + tr[j][6]);
            }
        }if (a[i-1] == '0' & b[i-1] == '1'){
            for (int j = 0; j < 8; j++){
                dp[i][2] = min(dp[i][2], dp[i-1][j] + tr[j][2]);
                dp[i][4] = min(dp[i][4], dp[i-1][j] + tr[j][4]);
                dp[i][5] = min(dp[i][5], dp[i-1][j] + tr[j][5]);
            }
        }
    }
    int ans = 1e9;
    for (int i = 0; i < 8; i++){
        ans = min(ans, dp[n][i]);
    }
//    for (int j = 0; j < 8; j ++){
//        for (int i = 1; i <= n; i++){
//            if (dp[i][j] == 1e9) cout << "X ";
//            else cout << dp[i][j] << ' ';
//        }
//        cout << endl;
//    }
    cout << ans;
}

signed main(){
    open("", ".inp", ".out");
    FAST_IO; int TC = 1;
//    cin >> TC;
    while(TC--) Solve();
    return 0;
}
/*

./-=====>>><<<-------- DEBUG -------->>><<<=====-\.
/.................................................\

+====================== INP ======================+


+====================== OUT ======================+


\................................................./
.\-=====>>><<<--------= END =-------->>><<<=====-/.
*/

Compilation message

lamp.cpp: In function 'void Solve()':
lamp.cpp:77:20: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
         if (a[i-1] == '1' & b[i-1] == '1'){
lamp.cpp:83:21: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
         }if (a[i-1] == '1' & b[i-1] == '0'){
lamp.cpp:89:21: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
         }if (a[i-1] == '0' & b[i-1] == '0'){
lamp.cpp:95:21: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
         }if (a[i-1] == '0' & b[i-1] == '1'){
lamp.cpp: In function 'int main()':
lamp.cpp:21:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
                                 freopen(file in, "r", stdin);  \
                                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
lamp.cpp:118:5: note: in expansion of macro 'open'
     open("", ".inp", ".out");
     ^~~~
lamp.cpp:22:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
                                 freopen(file out, "w", stdout); \
                                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
lamp.cpp:118:5: note: in expansion of macro 'open'
     open("", ".inp", ".out");
     ^~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 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 1 ms 512 KB Output is correct
40 Correct 1 ms 512 KB Output is correct
41 Correct 1 ms 512 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 1 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 1 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 512 KB Output is correct
55 Correct 1 ms 512 KB Output is correct
56 Correct 1 ms 512 KB Output is correct
57 Correct 1 ms 512 KB Output is correct
58 Correct 1 ms 512 KB Output is correct

Subtask #3
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 56 ms 67024 KB Output is correct
8 Correct 57 ms 67040 KB Output is correct
9 Correct 56 ms 67016 KB Output is correct
10 Correct 60 ms 67016 KB Output is correct
11 Correct 54 ms 67012 KB Output is correct
12 Correct 61 ms 67088 KB Output is correct
13 Correct 60 ms 67028 KB Output is correct
14 Correct 54 ms 67020 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 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 1 ms 512 KB Output is correct
40 Correct 1 ms 512 KB Output is correct
41 Correct 1 ms 512 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 1 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 1 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 512 KB Output is correct
55 Correct 1 ms 512 KB Output is correct
56 Correct 1 ms 512 KB Output is correct
57 Correct 1 ms 512 KB Output is correct
58 Correct 1 ms 512 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 1 ms 384 KB Output is correct
62 Correct 0 ms 384 KB Output is correct
63 Correct 0 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 56 ms 67024 KB Output is correct
66 Correct 57 ms 67040 KB Output is correct
67 Correct 56 ms 67016 KB Output is correct
68 Correct 60 ms 67016 KB Output is correct
69 Correct 54 ms 67012 KB Output is correct
70 Correct 61 ms 67088 KB Output is correct
71 Correct 60 ms 67028 KB Output is correct
72 Correct 54 ms 67020 KB Output is correct
73 Correct 55 ms 67052 KB Output is correct
74 Correct 58 ms 67068 KB Output is correct
75 Correct 61 ms 67012 KB Output is correct
76 Correct 55 ms 67020 KB Output is correct
77 Correct 60 ms 67020 KB Output is correct
78 Correct 55 ms 67028 KB Output is correct
79 Correct 61 ms 67020 KB Output is correct
80 Correct 55 ms 67016 KB Output is correct
81 Correct 55 ms 67004 KB Output is correct
82 Correct 55 ms 67020 KB Output is correct
83 Correct 59 ms 67016 KB Output is correct
84 Correct 59 ms 67012 KB Output is correct
85 Correct 59 ms 67016 KB Output is correct
86 Correct 62 ms 67020 KB Output is correct
87 Correct 58 ms 67016 KB Output is correct
88 Correct 59 ms 67028 KB Output is correct
89 Correct 60 ms 67144 KB Output is correct
90 Correct 59 ms 67028 KB Output is correct
91 Correct 61 ms 67080 KB Output is correct
92 Correct 69 ms 67016 KB Output is correct
93 Correct 63 ms 67016 KB Output is correct
94 Correct 63 ms 67020 KB Output is correct
95 Correct 63 ms 67012 KB Output is correct
96 Correct 79 ms 67020 KB Output is correct
97 Correct 62 ms 67032 KB Output is correct
98 Correct 63 ms 67016 KB Output is correct
99 Correct 63 ms 67016 KB Output is correct
100 Correct 64 ms 67028 KB Output is correct
101 Correct 64 ms 67056 KB Output is correct
102 Correct 64 ms 66972 KB Output is correct