oj.uz

Submission #573715

# Submission time Handle Problem Language Result Execution time Memory
573715 2022-06-07T05:48:09 Z Devigo Experimental Charges (NOI19_charges) C++14
100 / 100
 238 ms 157148 KB 
#include "bits/stdc++.h"
using namespace std;
#define int long long
 
const int w = 1000050;
int n, m;
char c;
vector<int> parent((int) 1e7), siz((int) 1e7, 1);
 
int findpar(int x) {
    if(x == parent[x]) return x;
    return parent[x] = findpar(parent[x]);
}
 
void unite(int x, int y) {
    x = findpar(x);
    y = findpar(y);
 
    if(x == y) return;
    if(siz[y] > siz[x]) swap(x, y);
 
    parent[y] = x;
    siz[x] += siz[y];
}
 
signed main() {
    cin >> n >> m;
    for(int i = 0; i < (int) 1e7; ++i) parent[i] = i;
 
    int x, y;
    while(m--) {
        cin >> c; cin >> x >> y;
        if(c == 'A') {
            unite(x, y + w);
            unite(x + w, y);
        } else if(c == 'R') {
            unite(x, y);
            unite(x + w, y + w);
        } else {
            int p, q, r;
            p = findpar(x);
            q = findpar(y);
            r = findpar(x + w);
            //s = findpar(y + w);
 
            //if(p == q && p == s) cout << "?";
            if (p == q) cout << "R";
            else if (q == r) cout << "A";
            else cout << "?";
            cout << "\n";
        }
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 156848 KB Output is correct
2 Correct 78 ms 156804 KB Output is correct
3 Correct 84 ms 156748 KB Output is correct
4 Correct 76 ms 156760 KB Output is correct
5 Correct 84 ms 156832 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 177 ms 156868 KB Output is correct
2 Correct 169 ms 156880 KB Output is correct
3 Correct 238 ms 156992 KB Output is correct
4 Correct 193 ms 156920 KB Output is correct
5 Correct 157 ms 156856 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 211 ms 156916 KB Output is correct
2 Correct 215 ms 156920 KB Output is correct
3 Correct 197 ms 156912 KB Output is correct
4 Correct 172 ms 156916 KB Output is correct
5 Correct 183 ms 156944 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 156852 KB Output is correct
2 Correct 197 ms 156900 KB Output is correct
3 Correct 163 ms 156904 KB Output is correct
4 Correct 167 ms 156960 KB Output is correct
5 Correct 160 ms 156844 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 156848 KB Output is correct
2 Correct 78 ms 156804 KB Output is correct
3 Correct 84 ms 156748 KB Output is correct
4 Correct 76 ms 156760 KB Output is correct
5 Correct 84 ms 156832 KB Output is correct
6 Correct 73 ms 156768 KB Output is correct
7 Correct 72 ms 156900 KB Output is correct
8 Correct 72 ms 156856 KB Output is correct
9 Correct 77 ms 156744 KB Output is correct
10 Correct 72 ms 156848 KB Output is correct

Subtask #6
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 156848 KB Output is correct
2 Correct 78 ms 156804 KB Output is correct
3 Correct 84 ms 156748 KB Output is correct
4 Correct 76 ms 156760 KB Output is correct
5 Correct 84 ms 156832 KB Output is correct
6 Correct 177 ms 156868 KB Output is correct
7 Correct 169 ms 156880 KB Output is correct
8 Correct 238 ms 156992 KB Output is correct
9 Correct 193 ms 156920 KB Output is correct
10 Correct 157 ms 156856 KB Output is correct
11 Correct 211 ms 156916 KB Output is correct
12 Correct 215 ms 156920 KB Output is correct
13 Correct 197 ms 156912 KB Output is correct
14 Correct 172 ms 156916 KB Output is correct
15 Correct 183 ms 156944 KB Output is correct
16 Correct 179 ms 156852 KB Output is correct
17 Correct 197 ms 156900 KB Output is correct
18 Correct 163 ms 156904 KB Output is correct
19 Correct 167 ms 156960 KB Output is correct
20 Correct 160 ms 156844 KB Output is correct
21 Correct 73 ms 156768 KB Output is correct
22 Correct 72 ms 156900 KB Output is correct
23 Correct 72 ms 156856 KB Output is correct
24 Correct 77 ms 156744 KB Output is correct
25 Correct 72 ms 156848 KB Output is correct
26 Correct 200 ms 157148 KB Output is correct
27 Correct 196 ms 157020 KB Output is correct
28 Correct 161 ms 156876 KB Output is correct
29 Correct 163 ms 156900 KB Output is correct
30 Correct 163 ms 156940 KB Output is correct