oj.uz

Submission #446265

# Submission time Handle Problem Language Result Execution time Memory
446265 2021-07-21T11:41:39 Z urd05 Building Skyscrapers (CEOI19_skyscrapers) C++17
8 / 100
 199 ms 10184 KB 
#include <bits/stdc++.h>
using namespace std;

typedef pair<int,int> P;
map<P,int> mp;
map<P,bool> vis;

int main() {
    int n,t;
    scanf("%d %d",&n,&t);
    for(int i=0;i<n;i++) {
        int x,y;
        scanf("%d %d",&x,&y);
        mp[P(x,y)]=i;
    }
    P st=(*mp.begin()).first;
    vis[st]=true;
    deque<P> q;
    q.push_front(st);
    vector<int> ret;
    while (!q.empty()) {
        P now=q.front();
        ret.push_back(mp[now]);
        q.pop_front();
        int x=now.first;
        int y=now.second;
        if (mp.find(P(x,y-1))!=mp.end()&&!vis[P(x,y-1)]) {
            q.push_front(P(x,y-1));
            vis[P(x,y-1)]=true;
        }
        if (mp.find(P(x,y+1))!=mp.end()&&!vis[P(x,y+1)]) {
            q.push_front(P(x,y+1));
            vis[P(x,y+1)]=true;
        }
        for(int d=-1;d<=1;d++) {
            if (mp.find(P(x+1,y+d))!=mp.end()&&!vis[P(x+1,y+d)]) {
                q.push_back(P(x+1,y+d));
                vis[P(x+1,y+d)]=true;
            }
            if (mp.find(P(x-1,y+d))!=mp.end()&&!vis[P(x-1,y+d)]) {
                q.push_back(P(x-1,y+d));
                vis[P(x-1,y+d)]=true;
            }
        }
    }
    if (ret.size()!=n) {
        printf("NO");
    }
    else {
        printf("YES\n");
        for(int i=0;i<n;i++) {
            printf("%d\n",ret[i]+1);
        }
    }
}

Compilation message

skyscrapers.cpp: In function 'int main()':
skyscrapers.cpp:46:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   46 |     if (ret.size()!=n) {
      |         ~~~~~~~~~~^~~
skyscrapers.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%d %d",&n,&t);
      |     ~~~~~^~~~~~~~~~~~~~~
skyscrapers.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         scanf("%d %d",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ans=YES N=1
2 Correct 0 ms 204 KB ans=YES N=4
3 Correct 1 ms 204 KB ans=NO N=4
4 Correct 0 ms 204 KB ans=YES N=5
5 Correct 0 ms 204 KB ans=YES N=9
6 Correct 0 ms 292 KB ans=YES N=5
7 Correct 1 ms 204 KB ans=NO N=9
8 Correct 1 ms 204 KB ans=NO N=10
9 Correct 1 ms 204 KB ans=YES N=10
10 Correct 1 ms 204 KB ans=YES N=10
11 Correct 1 ms 204 KB ans=YES N=10
12 Correct 1 ms 204 KB ans=YES N=9
13 Correct 0 ms 204 KB ans=YES N=9
14 Correct 1 ms 204 KB ans=YES N=8
15 Correct 1 ms 204 KB ans=YES N=8
16 Correct 2 ms 204 KB ans=NO N=2

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ans=YES N=1
2 Correct 0 ms 204 KB ans=YES N=4
3 Correct 1 ms 204 KB ans=NO N=4
4 Correct 0 ms 204 KB ans=YES N=5
5 Correct 0 ms 204 KB ans=YES N=9
6 Correct 0 ms 292 KB ans=YES N=5
7 Correct 1 ms 204 KB ans=NO N=9
8 Correct 1 ms 204 KB ans=NO N=10
9 Correct 1 ms 204 KB ans=YES N=10
10 Correct 1 ms 204 KB ans=YES N=10
11 Correct 1 ms 204 KB ans=YES N=10
12 Correct 1 ms 204 KB ans=YES N=9
13 Correct 0 ms 204 KB ans=YES N=9
14 Correct 1 ms 204 KB ans=YES N=8
15 Correct 1 ms 204 KB ans=YES N=8
16 Correct 2 ms 204 KB ans=NO N=2
17 Correct 1 ms 204 KB ans=YES N=17
18 Correct 1 ms 204 KB ans=YES N=25
19 Correct 1 ms 204 KB ans=YES N=100
20 Correct 1 ms 204 KB ans=YES N=185
21 Correct 1 ms 204 KB ans=NO N=174
22 Correct 1 ms 204 KB ans=YES N=90
23 Correct 1 ms 204 KB ans=YES N=63
24 Correct 1 ms 204 KB ans=YES N=87
25 Correct 1 ms 204 KB ans=YES N=183
26 Correct 1 ms 204 KB ans=YES N=188
27 Correct 1 ms 204 KB ans=YES N=183
28 Correct 1 ms 332 KB ans=YES N=189
29 Correct 1 ms 204 KB ans=YES N=200
30 Correct 1 ms 204 KB ans=YES N=190
31 Correct 1 ms 204 KB ans=YES N=187
32 Correct 1 ms 204 KB ans=YES N=187
33 Correct 1 ms 204 KB ans=YES N=182
34 Correct 1 ms 204 KB ans=YES N=184
35 Correct 1 ms 204 KB ans=YES N=188
36 Correct 1 ms 204 KB ans=YES N=181
37 Incorrect 1 ms 204 KB Added cell 151 (-866175210,267653108) not reachable from infinity
38 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ans=YES N=1
2 Correct 0 ms 204 KB ans=YES N=4
3 Correct 1 ms 204 KB ans=NO N=4
4 Correct 0 ms 204 KB ans=YES N=5
5 Correct 0 ms 204 KB ans=YES N=9
6 Correct 0 ms 292 KB ans=YES N=5
7 Correct 1 ms 204 KB ans=NO N=9
8 Correct 1 ms 204 KB ans=NO N=10
9 Correct 1 ms 204 KB ans=YES N=10
10 Correct 1 ms 204 KB ans=YES N=10
11 Correct 1 ms 204 KB ans=YES N=10
12 Correct 1 ms 204 KB ans=YES N=9
13 Correct 0 ms 204 KB ans=YES N=9
14 Correct 1 ms 204 KB ans=YES N=8
15 Correct 1 ms 204 KB ans=YES N=8
16 Correct 2 ms 204 KB ans=NO N=2
17 Correct 1 ms 204 KB ans=YES N=17
18 Correct 1 ms 204 KB ans=YES N=25
19 Correct 1 ms 204 KB ans=YES N=100
20 Correct 1 ms 204 KB ans=YES N=185
21 Correct 1 ms 204 KB ans=NO N=174
22 Correct 1 ms 204 KB ans=YES N=90
23 Correct 1 ms 204 KB ans=YES N=63
24 Correct 1 ms 204 KB ans=YES N=87
25 Correct 1 ms 204 KB ans=YES N=183
26 Correct 1 ms 204 KB ans=YES N=188
27 Correct 1 ms 204 KB ans=YES N=183
28 Correct 1 ms 332 KB ans=YES N=189
29 Correct 1 ms 204 KB ans=YES N=200
30 Correct 1 ms 204 KB ans=YES N=190
31 Correct 1 ms 204 KB ans=YES N=187
32 Correct 1 ms 204 KB ans=YES N=187
33 Correct 1 ms 204 KB ans=YES N=182
34 Correct 1 ms 204 KB ans=YES N=184
35 Correct 1 ms 204 KB ans=YES N=188
36 Correct 1 ms 204 KB ans=YES N=181
37 Incorrect 1 ms 204 KB Added cell 151 (-866175210,267653108) not reachable from infinity
38 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB ans=NO N=1934
2 Correct 2 ms 332 KB ans=NO N=1965
3 Incorrect 4 ms 460 KB Contestant's solution is not lexicographically largest at index 1824 (1813 vs 1702)
4 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ans=YES N=1
2 Correct 0 ms 204 KB ans=YES N=4
3 Correct 1 ms 204 KB ans=NO N=4
4 Correct 0 ms 204 KB ans=YES N=5
5 Correct 0 ms 204 KB ans=YES N=9
6 Correct 0 ms 292 KB ans=YES N=5
7 Correct 1 ms 204 KB ans=NO N=9
8 Correct 1 ms 204 KB ans=NO N=10
9 Correct 1 ms 204 KB ans=YES N=10
10 Correct 1 ms 204 KB ans=YES N=10
11 Correct 1 ms 204 KB ans=YES N=10
12 Correct 1 ms 204 KB ans=YES N=9
13 Correct 0 ms 204 KB ans=YES N=9
14 Correct 1 ms 204 KB ans=YES N=8
15 Correct 1 ms 204 KB ans=YES N=8
16 Correct 2 ms 204 KB ans=NO N=2
17 Correct 1 ms 204 KB ans=YES N=17
18 Correct 1 ms 204 KB ans=YES N=25
19 Correct 1 ms 204 KB ans=YES N=100
20 Correct 1 ms 204 KB ans=YES N=185
21 Correct 1 ms 204 KB ans=NO N=174
22 Correct 1 ms 204 KB ans=YES N=90
23 Correct 1 ms 204 KB ans=YES N=63
24 Correct 1 ms 204 KB ans=YES N=87
25 Correct 1 ms 204 KB ans=YES N=183
26 Correct 1 ms 204 KB ans=YES N=188
27 Correct 1 ms 204 KB ans=YES N=183
28 Correct 1 ms 332 KB ans=YES N=189
29 Correct 1 ms 204 KB ans=YES N=200
30 Correct 1 ms 204 KB ans=YES N=190
31 Correct 1 ms 204 KB ans=YES N=187
32 Correct 1 ms 204 KB ans=YES N=187
33 Correct 1 ms 204 KB ans=YES N=182
34 Correct 1 ms 204 KB ans=YES N=184
35 Correct 1 ms 204 KB ans=YES N=188
36 Correct 1 ms 204 KB ans=YES N=181
37 Incorrect 1 ms 204 KB Added cell 151 (-866175210,267653108) not reachable from infinity
38 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 146 ms 9488 KB ans=NO N=66151
2 Correct 45 ms 4784 KB ans=NO N=64333
3 Incorrect 199 ms 10184 KB Contestant's solution is not lexicographically largest at index 69316 (69235 vs 7320)
4 Halted 0 ms 0 KB -

Subtask #7
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB ans=NO N=1934
2 Correct 2 ms 332 KB ans=NO N=1965
3 Incorrect 4 ms 460 KB Contestant's solution is not lexicographically largest at index 1824 (1813 vs 1702)
4 Halted 0 ms 0 KB -