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Submission #413061

# Submission time Handle Problem Language Result Execution time Memory
413061 2021-05-28T07:48:12 Z nxteru Handcrafted Gift (IOI20_gift) C++14
100 / 100
 194 ms 29104 KB 
#include "gift.h"
using namespace std;
int ims[500005],s[500005];
int construct(int n, int r,vector<int> a,vector<int> b,vector<int> x) {
    vector<pair<int,int>>p[2];
    for(int i=0;i<r;i++){
        p[x[i]-1].push_back(make_pair(a[i],b[i]));
    }
    for(auto i:p[0]){
        ims[i.first]++;
        ims[i.second]--;
    }
    for(int i=1;i<n;i++)ims[i]+=ims[i-1];
    for(int i=1;i<n;i++){
        if(ims[i-1]==0)s[i]=1;
        if(i>0)s[i]+=s[i-1];
    }
    for(auto i:p[1]){
        if(s[i.second]==s[i.first])return 0;
    }
    string ans="R";
    for(int i=0;i<n-1;i++){
        if(ims[i]>0)ans+=ans.back();
        else{
            if(ans.back()=='R')ans+='B';
            else ans+='R';
        }
    }
    craft(ans);
    return 1;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 5 ms 844 KB Output is correct
5 Correct 171 ms 29052 KB Output is correct
6 Correct 165 ms 29104 KB Output is correct
7 Correct 179 ms 29052 KB Output is correct
8 Correct 186 ms 29056 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 4 ms 844 KB Output is correct
4 Correct 174 ms 28920 KB Output is correct
5 Correct 174 ms 28836 KB Output is correct
6 Correct 168 ms 27532 KB Output is correct
7 Correct 173 ms 27520 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 292 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 2 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 300 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 5 ms 844 KB Output is correct
5 Correct 171 ms 29052 KB Output is correct
6 Correct 165 ms 29104 KB Output is correct
7 Correct 179 ms 29052 KB Output is correct
8 Correct 186 ms 29056 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 4 ms 844 KB Output is correct
12 Correct 174 ms 28920 KB Output is correct
13 Correct 174 ms 28836 KB Output is correct
14 Correct 168 ms 27532 KB Output is correct
15 Correct 173 ms 27520 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 300 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 292 KB Output is correct
24 Correct 1 ms 292 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 2 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 2 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 10 ms 5332 KB Output is correct
36 Correct 10 ms 5408 KB Output is correct
37 Correct 17 ms 6236 KB Output is correct
38 Correct 173 ms 29044 KB Output is correct
39 Correct 167 ms 27604 KB Output is correct
40 Correct 178 ms 28912 KB Output is correct
41 Correct 194 ms 28848 KB Output is correct
42 Correct 179 ms 28572 KB Output is correct