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#include <cstdio>
#include <cstring>
#include <cmath>
#include <ctype.h>
#define NMAX 100020
int TT[NMAX], RG[NMAX];
int N, M;
using namespace std;
class OutParser {
private:
FILE *fout;
char *buff;
int sp;
void write_ch(char ch) {
if (sp == 50000) {
fwrite(buff, 1, 50000, fout);
sp = 0;
buff[sp++] = ch;
} else {
buff[sp++] = ch;
}
}
public:
OutParser(const char* name) {
fout = fopen(name, "w");
buff = new char[50000]();
sp = 0;
}
~OutParser() {
fwrite(buff, 1, sp, fout);
fclose(fout);
}
OutParser& operator << (int vu32) {
if (vu32 <= 9) {
write_ch(vu32 + '0');
} else {
(*this) << (vu32 / 10);
write_ch(vu32 % 10 + '0');
}
return *this;
}
OutParser& operator << (long long vu64) {
if (vu64 <= 9) {
write_ch(vu64 + '0');
} else {
(*this) << (vu64 / 10);
write_ch(vu64 % 10 + '0');
}
return *this;
}
OutParser& operator << (char ch) {
write_ch(ch);
return *this;
}
OutParser& operator << (const char *ch) {
while (*ch) {
write_ch(*ch);
++ch;
}
return *this;
}
};
class InParser {
private:
FILE *fin;
char *buff;
int sp;
char read_ch() {
++sp;
if (sp == 4096) {
sp = 0;
fread(buff, 1, 4096, fin);
}
return buff[sp];
}
public:
InParser(const char* nume) {
fin = fopen(nume, "r");
buff = new char[4096]();
sp = 4095;
}
InParser& operator >> (int &n) {
char c;
while (!isdigit(c = read_ch()) && c != '-');
int sgn = 1;
if (c == '-') {
n = 0;
sgn = -1;
} else {
n = c - '0';
}
while (isdigit(c = read_ch())) {
n = 10 * n + c - '0';
}
n *= sgn;
return *this;
}
InParser& operator >> (long long &n) {
char c;
n = 0;
while (!isdigit(c = read_ch()) && c != '-');
long long sgn = 1;
if (c == '-') {
n = 0;
sgn = -1;
} else {
n = c - '0';
}
while (isdigit(c = read_ch())) {
n = 10 * n + c - '0';
}
n *= sgn;
return *this;
}
};
int find(int x)
{
int R, y;
//merg in sus pe arbore pana gasesc un nod care pointeaza catre el insusi
for (R = x; TT[R] != R; R = TT[R]);
//aplic compresia drumurilor
for (; TT[x] != x;)
{
y = TT[x];
TT[x] = R;
x = y;
}
return R;
}
void unite(int x, int y)
{
//unesc multimea cu rang mai mic de cea cu rang mai mare
if (RG[x] > RG[y])
TT[y] = x;
else TT[x] = y;
//in caz ca rangurile erau egale atunci cresc rangul noii multimi cu 1
if (RG[x] == RG[y]) RG[y]++;
}
InParser cin("disjoint.in");
OutParser cout("disjoint.out");
int main()
{
cin >> N >> M;
int i, x, y, cd;
//initial fiecare nod pointeaza catre el insusi iar rangul fiecarui arbore este 1
for (i = 1; i <= N; i++)
{
TT[i] = i;
RG[i] = 1;
}
for (i = 1; i <= M; i++)
{
cin >> cd >> x >> y;
if (cd == 2){
//verific daca radacina arborilor in care se afla x respectiv y este egala
if (find(x) == find(y)) cout << "DA \n";
else cout << "NU\n";
}
else //unesc radacinile arborilor corespunzatori multimilor nodurilor x respectiv y
{
if (find(x) == find(y)) {fprintf(stderr,"%d ", i);return 0;}
unite(find(x), find(y));
}
}
return 0;
}