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Submission #117170

# Submission time Handle Problem Language Result Execution time Memory
117170 2019-06-15T06:19:38 Z onjo0127 None (JOI16_ho_t4) C++11
15 / 100
 89 ms 11256 KB 
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;

set<pii> st;
char S[100009];

int cnt(set<pii> S) {
    int ret = 0;
    for(auto& it: S) {
        int x, y; tie(x, y) = it;
        if(S.find({x+1, y}) != S.end() && S.find({x, y+1}) != S.end() && S.find({x+1, y+1}) != S.end()) ++ret;
    }
    return ret;
}

set<pii> rep(set<pii>& S, int K, int dx, int dy) {
    set<pii> ret;
    for(int i=0; i<K; i++) {
        for(auto& it: S) {
            int x, y; tie(x, y) = it;
            ret.insert({x + dx*i, y + dy*i});
        }
    }
    return ret;
}

int main() {
    int N, K; scanf("%d%d",&N,&K);
    int x = 0, y = 0; st.insert({0, 0});
    for(int i=1; i<=N; i++) {
        scanf(" %c",&S[i]);
        if(S[i] == 'N') ++y;
        if(S[i] == 'S') --y;
        if(S[i] == 'E') ++x;
        if(S[i] == 'W') --x;
        st.insert({x, y});
    }
    if(K == 1) printf("%d", cnt(st));
    else {
        int t = cnt(rep(st, K, x, y));
        if(K <= 500) printf("%d", t);
        else printf("%lld", 1LL * (cnt(rep(st, 501, x, y)) - t) * (K - 500) + t);
    }
    return 0;
}

Compilation message

2016_ho_t4.cpp: In function 'int main()':
2016_ho_t4.cpp:29:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     int N, K; scanf("%d%d",&N,&K);
               ~~~~~^~~~~~~~~~~~~~
2016_ho_t4.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %c",&S[i]);
         ~~~~~^~~~~~~~~~~~~

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 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 256 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 512 KB Output is correct
28 Correct 6 ms 640 KB Output is correct
29 Correct 14 ms 1664 KB Output is correct
30 Correct 17 ms 1792 KB Output is correct
31 Correct 43 ms 8312 KB Output is correct
32 Correct 22 ms 2304 KB Output is correct
33 Correct 24 ms 2808 KB Output is correct
34 Correct 24 ms 2944 KB Output is correct
35 Correct 25 ms 2680 KB Output is correct
36 Correct 23 ms 2432 KB Output is correct
37 Correct 24 ms 2816 KB Output is correct
38 Correct 24 ms 2552 KB Output is correct
39 Correct 24 ms 2688 KB Output is correct
40 Correct 22 ms 2432 KB Output is correct
41 Correct 21 ms 2304 KB Output is correct
42 Correct 21 ms 1916 KB Output is correct
43 Correct 27 ms 2944 KB Output is correct
44 Correct 24 ms 2552 KB Output is correct
45 Correct 22 ms 2176 KB Output is correct
46 Correct 36 ms 5112 KB Output is correct
47 Correct 37 ms 5120 KB Output is correct
48 Correct 55 ms 9848 KB Output is correct
49 Correct 44 ms 9848 KB Output is correct
50 Correct 46 ms 9856 KB Output is correct

Subtask #3
0 / 23.0

# 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 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Incorrect 89 ms 11256 KB Output isn't correct
27 Halted 0 ms 0 KB -

Subtask #4
0 / 62.0

# 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 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 512 KB Output is correct
28 Correct 6 ms 640 KB Output is correct
29 Correct 14 ms 1664 KB Output is correct
30 Correct 17 ms 1792 KB Output is correct
31 Correct 43 ms 8312 KB Output is correct
32 Correct 22 ms 2304 KB Output is correct
33 Correct 24 ms 2808 KB Output is correct
34 Correct 24 ms 2944 KB Output is correct
35 Correct 25 ms 2680 KB Output is correct
36 Correct 23 ms 2432 KB Output is correct
37 Correct 24 ms 2816 KB Output is correct
38 Correct 24 ms 2552 KB Output is correct
39 Correct 24 ms 2688 KB Output is correct
40 Correct 22 ms 2432 KB Output is correct
41 Correct 21 ms 2304 KB Output is correct
42 Correct 21 ms 1916 KB Output is correct
43 Correct 27 ms 2944 KB Output is correct
44 Correct 24 ms 2552 KB Output is correct
45 Correct 22 ms 2176 KB Output is correct
46 Correct 36 ms 5112 KB Output is correct
47 Correct 37 ms 5120 KB Output is correct
48 Correct 55 ms 9848 KB Output is correct
49 Correct 44 ms 9848 KB Output is correct
50 Correct 46 ms 9856 KB Output is correct
51 Incorrect 89 ms 11256 KB Output isn't correct
52 Halted 0 ms 0 KB -