Submission #219101

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
219101	2020-04-03 16:53:35	alexandra_udristoiu	Making Friends on Joitter is Fun (JOI20_joitter2)	C++14	100 / 100	1760 ms	56084 KiB

joitter2

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<iostream>
#include<set>
#include<vector>
#define DIM 100005
using namespace std;
int n, q, i, j, x, y, r1, r2, ry;
long long sol;
int r[DIM], num[DIM], nv[DIM];
vector<int> v[DIM], vr[DIM];
set<int> s[DIM], sr[DIM];
int rad(int x){
    while(r[x] > 0){
        x = r[x];
    }
    return x;
}
void uneste(int r1, int r2){
    int i, j, x, y, rx, ry;
    if(q == 1){
        int abc = 0;
    }
    if(r[r1] > 0 || r[r2] > 0){
        return;
    }
    if(r[r1] > r[r2]){
        swap(r1, r2);
    }
    sol -= num[r1] * 1LL * (num[r1] - 1) + num[r1] * 1LL * nv[r1];
    sol -= num[r2] * 1LL * (num[r2] - 1) + num[r2] * 1LL * nv[r2];
    for(i = 0; i < vr[r2].size(); i++){
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

joitter2.cpp: In function 'void uneste(int, int)':
joitter2.cpp:20:13: warning: unused variable 'abc' [-Wunused-variable]
         int abc = 0;
             ^~~
joitter2.cpp:30:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i = 0; i < vr[r2].size(); i++){
                ~~^~~~~~~~~~~~~~~
joitter2.cpp:37:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(j = 0; j < v[x].size(); j++){
                    ~~^~~~~~~~~~~~~
joitter2.cpp:69:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i = 0; i < vr[r2].size(); i++){
                ~~^~~~~~~~~~~~~~~
joitter2.cpp:71:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(j = 0; j < v[x].size(); j++){
                    ~~^~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 16 / 16
• Subtask 3: 83 / 83