#include <bits/stdc++.h>
using namespace std;
struct node {
int mn, mni, cnt;
};
const int MAXN=1e5+5;
vector<int> g[MAXN], ord;
priority_queue<int> pq;
node seg[MAXN*4];
int indt[MAXN], prof[MAXN];
int n, q;
void dfs(int cur) {
for(auto viz : g[cur]) {
prof[viz]=prof[cur]+1;
dfs(viz);
}
ord.push_back(cur);
indt[cur]=ord.size()-1;
}
int query(int sind, int ini, int fim, int qini, int qfim) {
if(qini>fim||qfim<ini) return 0;
if(qini<=ini&&qfim>=fim) return seg[sind].mni;
int m=(ini+fim)/2; int e=sind*2; int d=e+1;
int aa=query(e, ini, m, qini, qfim);
int bb=query(d, m+1, fim, qini, qfim);
if(prof[ord[aa]]<=prof[ord[bb]]) return aa;
else return bb;
}
void update(int sind, int ini, int fim, int qind, int k) {
if(qind<ini||qind>fim) return;
if(ini==fim) {
if(k==1) seg[sind].mn=prof[ord[ini]], seg[sind].cnt=0;
else seg[sind].mn=MAXN, seg[sind].cnt=1;
return;
}
int m=(ini+fim)/2; int e=sind*2; int d=e+1;
update(e, ini, m, qind, k); update(d, m+1, fim, qind, k);
seg[sind].mn=min(seg[e].mn, seg[d].mn);
if(seg[sind].mn==seg[e].mn) seg[sind].mni=seg[e].mni;
else seg[sind].mni=seg[d].mni;
seg[sind].cnt=seg[e].cnt+seg[d].cnt;
}
void build(int sind, int ini, int fim) {
if(ini==fim) {
seg[sind].mn=MAXN;
seg[sind].mni=ini;
seg[sind].cnt=1;
return;
}
int m=(ini+fim)/2; int e=sind*2; int d=e+1;
build(e, ini, m); build(d, m+1, fim);
seg[sind].mn=MAXN; seg[sind].mni=0;
seg[sind].cnt=seg[e].cnt+seg[d].cnt;
}
int main() {
scanf("%d %d", &n, &q);
for(int i=1; i<=n; i++) {
int a; scanf("%d", &a);
g[a].push_back(i);
}
ord.push_back(0); prof[1]=1; dfs(1); prof[0]=MAXN;
for(int i=1; i<=n; i++) pq.push(i);
build(1, 1, n);
while(q--) {
int a, val; scanf("%d %d", &a, &val);
if(a==1) {
int ind;
for(int i=1; i<=val; i++) {
ind=pq.top();
update(1, 1, n, ind, 1);
pq.pop();
// printf("%d > %d // %d\n", i, ind, ord[query(1, 1, n, 1, n)]);
}
printf("%d\n", ord[ind]);
}
else {
int cara=query(1, 1, n, indt[val], n);
printf("%d\n", prof[val]-prof[ord[cara]]);
update(1, 1, n, cara, -1);
pq.push(cara);
// printf("qu %d %d > %d\n", indt[val], n, ord[cara]);
}
}
}
Compilation message
ballmachine.cpp: In function 'int main()':
ballmachine.cpp:65:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &n, &q);
~~~~~^~~~~~~~~~~~~~~~~
ballmachine.cpp:67:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
int a; scanf("%d", &a);
~~~~~^~~~~~~~~~
ballmachine.cpp:77:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
int a, val; scanf("%d %d", &a, &val);
~~~~~^~~~~~~~~~~~~~~~~~~
ballmachine.cpp:86:26: warning: 'ind' may be used uninitialized in this function [-Wmaybe-uninitialized]
printf("%d\n", ord[ind]);
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
5 ms |
2688 KB |
Output isn't correct |
| 2 |
Runtime error |
54 ms |
11128 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 3 |
Runtime error |
33 ms |
11128 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 4 |
Incorrect |
4 ms |
2688 KB |
Output isn't correct |
| 5 |
Incorrect |
5 ms |
2660 KB |
Output isn't correct |
| 6 |
Incorrect |
6 ms |
2816 KB |
Output isn't correct |
| 7 |
Runtime error |
7 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 8 |
Runtime error |
8 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 9 |
Runtime error |
10 ms |
5632 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 10 |
Incorrect |
28 ms |
3544 KB |
Output isn't correct |
| 11 |
Runtime error |
40 ms |
11368 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 12 |
Runtime error |
36 ms |
11264 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 13 |
Runtime error |
28 ms |
11008 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
47 ms |
5780 KB |
Output isn't correct |
| 2 |
Runtime error |
64 ms |
19824 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 3 |
Runtime error |
42 ms |
15344 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 4 |
Incorrect |
82 ms |
4600 KB |
Output isn't correct |
| 5 |
Incorrect |
80 ms |
4472 KB |
Output isn't correct |
| 6 |
Incorrect |
90 ms |
4536 KB |
Output isn't correct |
| 7 |
Incorrect |
76 ms |
4476 KB |
Output isn't correct |
| 8 |
Incorrect |
61 ms |
5744 KB |
Output isn't correct |
| 9 |
Runtime error |
73 ms |
23664 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 10 |
Runtime error |
70 ms |
19876 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 11 |
Runtime error |
73 ms |
16240 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 12 |
Runtime error |
54 ms |
16112 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 13 |
Runtime error |
57 ms |
21488 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 14 |
Runtime error |
44 ms |
15344 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
35 ms |
13940 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Runtime error |
69 ms |
19824 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 3 |
Runtime error |
49 ms |
20648 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 4 |
Runtime error |
42 ms |
15984 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 5 |
Runtime error |
50 ms |
15348 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 6 |
Runtime error |
45 ms |
15476 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 7 |
Runtime error |
73 ms |
18412 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 8 |
Runtime error |
53 ms |
20692 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 9 |
Runtime error |
54 ms |
17136 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 10 |
Runtime error |
47 ms |
16336 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 11 |
Runtime error |
46 ms |
18672 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 12 |
Runtime error |
68 ms |
19696 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 13 |
Runtime error |
47 ms |
21972 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 14 |
Runtime error |
52 ms |
15480 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
50 ms |
17136 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Runtime error |
52 ms |
20460 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 3 |
Incorrect |
91 ms |
14320 KB |
Output isn't correct |
| 4 |
Runtime error |
45 ms |
17136 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 5 |
Incorrect |
101 ms |
8688 KB |
Output isn't correct |
| 6 |
Incorrect |
144 ms |
11600 KB |
Output isn't correct |
| 7 |
Runtime error |
58 ms |
20460 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 8 |
Incorrect |
120 ms |
14324 KB |
Output isn't correct |
| 9 |
Runtime error |
46 ms |
15472 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
