oj.uz

Submission #573702

# Submission time Handle Problem Language Result Execution time Memory
573702 2022-06-07T05:45:31 Z Devigo Experimental Charges (NOI19_charges) C++14
100 / 100
 223 ms 158288 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, s;
            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 (p == s) cout << "A";
            else cout << "?";
            cout << "\n";
        }
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 156748 KB Output is correct
2 Correct 69 ms 156848 KB Output is correct
3 Correct 71 ms 156860 KB Output is correct
4 Correct 69 ms 156832 KB Output is correct
5 Correct 69 ms 156736 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 173 ms 157756 KB Output is correct
2 Correct 157 ms 157820 KB Output is correct
3 Correct 223 ms 158008 KB Output is correct
4 Correct 190 ms 157876 KB Output is correct
5 Correct 167 ms 157844 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 197 ms 158256 KB Output is correct
2 Correct 199 ms 158164 KB Output is correct
3 Correct 195 ms 158252 KB Output is correct
4 Correct 173 ms 158288 KB Output is correct
5 Correct 181 ms 158276 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 194 ms 158148 KB Output is correct
2 Correct 204 ms 158128 KB Output is correct
3 Correct 164 ms 158112 KB Output is correct
4 Correct 187 ms 158244 KB Output is correct
5 Correct 161 ms 158124 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 156748 KB Output is correct
2 Correct 69 ms 156848 KB Output is correct
3 Correct 71 ms 156860 KB Output is correct
4 Correct 69 ms 156832 KB Output is correct
5 Correct 69 ms 156736 KB Output is correct
6 Correct 71 ms 156932 KB Output is correct
7 Correct 69 ms 156796 KB Output is correct
8 Correct 75 ms 156856 KB Output is correct
9 Correct 73 ms 156764 KB Output is correct
10 Correct 70 ms 156896 KB Output is correct

Subtask #6
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 156748 KB Output is correct
2 Correct 69 ms 156848 KB Output is correct
3 Correct 71 ms 156860 KB Output is correct
4 Correct 69 ms 156832 KB Output is correct
5 Correct 69 ms 156736 KB Output is correct
6 Correct 173 ms 157756 KB Output is correct
7 Correct 157 ms 157820 KB Output is correct
8 Correct 223 ms 158008 KB Output is correct
9 Correct 190 ms 157876 KB Output is correct
10 Correct 167 ms 157844 KB Output is correct
11 Correct 197 ms 158256 KB Output is correct
12 Correct 199 ms 158164 KB Output is correct
13 Correct 195 ms 158252 KB Output is correct
14 Correct 173 ms 158288 KB Output is correct
15 Correct 181 ms 158276 KB Output is correct
16 Correct 194 ms 158148 KB Output is correct
17 Correct 204 ms 158128 KB Output is correct
18 Correct 164 ms 158112 KB Output is correct
19 Correct 187 ms 158244 KB Output is correct
20 Correct 161 ms 158124 KB Output is correct
21 Correct 71 ms 156932 KB Output is correct
22 Correct 69 ms 156796 KB Output is correct
23 Correct 75 ms 156856 KB Output is correct
24 Correct 73 ms 156764 KB Output is correct
25 Correct 70 ms 156896 KB Output is correct
26 Correct 193 ms 158188 KB Output is correct
27 Correct 218 ms 158164 KB Output is correct
28 Correct 164 ms 158160 KB Output is correct
29 Correct 175 ms 158144 KB Output is correct
30 Correct 182 ms 158152 KB Output is correct