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Submission #594124

# Submission time Handle Problem Language Result Execution time Memory
594124 2022-07-12T06:46:23 Z 반딧불(#8432) None (JOI16_ho_t4) C++17
38 / 100
 107 ms 13056 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int LIM = 30;

const int xx[]={0, 1, 0, -1}, yy[]={1, 0, -1, 0};

int n, k;
int arr[100002];
ll ans[52];

ll getAns(ll k){
    vector<pair<int, int> > vec;
    int x=0, y=0;
    vec.push_back(make_pair(x, y));
    for(int turn=1; turn<=k; turn++){
        for(int i=1; i<=n; i++){
            x+=xx[arr[i]], y+=yy[arr[i]];
            vec.push_back(make_pair(x, y));
        }
    }
    sort(vec.begin(), vec.end());
    vec.erase(unique(vec.begin(), vec.end()), vec.end());
    int cnt = 0;
    for(int i=0; i<(int)vec.size()-1; i++){
        if(vec[i+1].first != vec[i].first || vec[i+1].second != vec[i].second+1) continue;
        auto it = lower_bound(vec.begin(), vec.end(), make_pair(vec[i].first+1, vec[i].second));
        if(it == vec.end() || next(it) == vec.end()) continue;
        ++it;
        if(it->second != vec[i].second+1 || it->first != vec[i].first+1) continue;
        cnt++;
    }
    return cnt;
}

int main(){
    scanf("%d %d", &n, &k);
    for(int i=1; i<=n; i++){
        char c;
        scanf(" %c", &c);
        if(c == 'N') arr[i] = 0;
        else if(c == 'E') arr[i] = 1;
        else if(c == 'S') arr[i] = 2;
        else arr[i] = 3;
    }
    if(k<=LIM){
        printf("%lld", getAns(k));
    }
    else{
        ll ansL = getAns(LIM), ansL1 = getAns(LIM-1);
        printf("%lld", ansL + (ansL - ansL1) * (k - LIM));
    }
}

Compilation message

2016_ho_t4.cpp: In function 'int main()':
2016_ho_t4.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
2016_ho_t4.cpp:42:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |         scanf(" %c", &c);
      |         ~~~~~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 3 ms 596 KB Output is correct
29 Correct 8 ms 1104 KB Output is correct
30 Correct 11 ms 1740 KB Output is correct
31 Correct 17 ms 1860 KB Output is correct
32 Correct 15 ms 1868 KB Output is correct
33 Correct 16 ms 1792 KB Output is correct
34 Correct 16 ms 1740 KB Output is correct
35 Correct 15 ms 1740 KB Output is correct
36 Correct 15 ms 1868 KB Output is correct
37 Correct 16 ms 1740 KB Output is correct
38 Correct 15 ms 1740 KB Output is correct
39 Correct 16 ms 1740 KB Output is correct
40 Correct 19 ms 1868 KB Output is correct
41 Correct 15 ms 1740 KB Output is correct
42 Correct 16 ms 1740 KB Output is correct
43 Correct 17 ms 1740 KB Output is correct
44 Correct 16 ms 1804 KB Output is correct
45 Correct 15 ms 1868 KB Output is correct
46 Correct 18 ms 1820 KB Output is correct
47 Correct 21 ms 1740 KB Output is correct
48 Correct 17 ms 1832 KB Output is correct
49 Correct 10 ms 1852 KB Output is correct
50 Correct 18 ms 1836 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 212 KB Output is correct

Subtask #4
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 3 ms 596 KB Output is correct
29 Correct 8 ms 1104 KB Output is correct
30 Correct 11 ms 1740 KB Output is correct
31 Correct 17 ms 1860 KB Output is correct
32 Correct 15 ms 1868 KB Output is correct
33 Correct 16 ms 1792 KB Output is correct
34 Correct 16 ms 1740 KB Output is correct
35 Correct 15 ms 1740 KB Output is correct
36 Correct 15 ms 1868 KB Output is correct
37 Correct 16 ms 1740 KB Output is correct
38 Correct 15 ms 1740 KB Output is correct
39 Correct 16 ms 1740 KB Output is correct
40 Correct 19 ms 1868 KB Output is correct
41 Correct 15 ms 1740 KB Output is correct
42 Correct 16 ms 1740 KB Output is correct
43 Correct 17 ms 1740 KB Output is correct
44 Correct 16 ms 1804 KB Output is correct
45 Correct 15 ms 1868 KB Output is correct
46 Correct 18 ms 1820 KB Output is correct
47 Correct 21 ms 1740 KB Output is correct
48 Correct 17 ms 1832 KB Output is correct
49 Correct 10 ms 1852 KB Output is correct
50 Correct 18 ms 1836 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 212 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 1 ms 212 KB Output is correct
67 Correct 1 ms 212 KB Output is correct
68 Correct 1 ms 212 KB Output is correct
69 Correct 1 ms 340 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 1 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 1 ms 212 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 57 ms 4172 KB Output is correct
77 Correct 38 ms 4196 KB Output is correct
78 Incorrect 107 ms 13056 KB Output isn't correct
79 Halted 0 ms 0 KB -