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Cod sursa(job #766058)
#include <stdio.h>
using namespace std;
int H[200001];
int HSize;
int Time[200001];
int Time_p[200001];
int T = 0;
void sw_val(int &a, int &b) {
int aux = a;
a = b;
b = aux;
}
void sw(int poz1, int poz2) {
sw_val(H[poz1], H[poz2]);
sw_val(Time[poz1], Time[poz2]);
sw_val(Time_p[Time[poz1]], Time_p[Time[poz2]]);
}
void heapify_up(int poz) {
while (poz > 1 && H[poz] < H[poz / 2]) {
sw(poz, poz/2);
poz = poz / 2;
}
}
void heapify_down(int poz) {
bool ok = false;
while (ok == false) {
int min_child = poz * 2;
int max_child = min_child + 1;
if (max_child <= HSize && H[min_child] > H[max_child]) {
sw_val(max_child, min_child);
}
if (min_child <= HSize && H[min_child] < H[poz]) {
sw(min_child, poz);
poz = min_child;
} else if (max_child <= HSize && H[max_child] < H[poz]) {
sw(max_child, poz);
poz = max_child;
} else {
ok = true;
}
}
}
void insert_(int val) {
HSize++;
H[HSize] = val;
T++;
Time_p[T] = HSize;
Time[HSize] = T;
heapify_up(HSize);
}
void delete_(int t) {
int poz = Time_p[t];
if (T >= t && t >= 1 && poz <= HSize) {
Time[poz] = -1;
Time_p[t] = poz;
sw(poz, HSize);
HSize--;
heapify_down(poz);
}
}
void print_min() {
printf("%d\n",H[1]);
}
void print_heap() {
for (int i = 1; i <= HSize; i++) {
printf("(%d; %d) ", H[i], Time[i]);
}
printf("\n");
}
void solve_() {
int n, a, b;
scanf("%d", &n);
for (int i = 0; i < n; i++) {
scanf("%d", &a);
switch (a) {
case 1:
scanf("%d", &b);
insert_(b);
break;
case 2:
scanf("%d", &b);
delete_(b);
break;
case 3:
print_min();
break;
default:
break;
}
printf("%d %d ", a, b);
//if (a == 2) {printf("el: %d", H[Time_p[b]]);};
printf("\n");
print_heap();
printf("\n");
}
}
int main() {
freopen("heapuri.in", "r", stdin);
freopen("heapuri.out", "w", stdout);
solve_();
return 0;
}