/// nu mai ai ce discuta cu mn ruxandra :(
#include <bits/stdc++.h>
#define DIM 30002
#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
/*
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
*/
using namespace std;
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;
}
} in("traffickers.in");
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;
}
} out("traffickers.out");
vector <int> L[DIM];
vector <int> chains[DIM];
int aint[20][21][DIM*4];
int whatChain[DIM],chainFatherNode[DIM],Size[DIM],posAib[DIM];
int level[DIM],fth[DIM],w[22],aux[22];
int n,m,i,j,tip,q,k,t1,t2,nr_chains,el,el2;
int x,y;
long long sum,sol_aint;
void update_aint (int nod, int st, int dr, int poz, int val, int a, int b){
if (st == dr){
aint[a][b][nod] += val;
return;
}
int mid = (st+dr)>>1;
if (poz <= mid)
update_aint (nod<<1,st,mid,poz,val,a,b);
else update_aint((nod<<1)|1,mid+1,dr,poz,val,a,b);
aint[a][b][nod] = aint[a][b][nod<<1] + aint[a][b][(nod<<1)|1];
}
void query_aint (int nod, int st, int dr, int x, int y, int a, int b){
if (x <= st && dr <= y){
sol_aint += aint[a][b][nod];
return;
}
int mid = (st+dr)>>1;
if (x <= mid)
query_aint(nod<<1,st,mid,x,y,a,b);
if (y > mid)
query_aint((nod<<1)|1,mid+1,dr,x,y,a,b);
}
/*void update_aib (int a, int b, int p, int n, int val){
for (;p<=n;p+=(p&-p))
aib[a][b][p] += val;
}
long long query_aib (int a, int b, int p){
if (!p)
return 0;
long long sol = 0;
for (;p;p-=(p&-p))
sol += aib[a][b][p];
return sol;
}*/
long long get_sum (int a, int b, int x, int y){
sol_aint = 0;
query_aint (1,1,n,x,y,a,b);
return sol_aint;
//return query_aib (a,b,y) - query_aib (a,b,x-1);
}
void dfs (int nod, int tata){
fth[nod] = tata;
level[nod] = 1 + level[tata];
Size[nod] = 1;
int ok = 0, maxim = 0, poz = 0;
for (auto vecin : L[nod]){
if (vecin != tata){
ok = 1;
dfs (vecin,nod);
Size[nod] += Size[vecin];
if (Size[vecin] > maxim)
maxim = Size[vecin], poz = vecin;
}}
if (!ok){
nr_chains++;
chains[nr_chains].push_back(0);
chains[nr_chains].push_back(nod);
whatChain[nod] = nr_chains;
} else {
chains[whatChain[poz]].push_back(nod);
whatChain[nod] = whatChain[poz];
for (auto vecin : L[nod]){
if (vecin == tata || vecin == poz)
continue;
chainFatherNode[whatChain[vecin]] = nod;
}}}
void drum (int x, int y){
el = el2 = 0;
while (x != y){
if (level[x] > level[y]){
w[++el] = x;
x = fth[x];
} else {
aux[++el2] = y;
y = fth[y];
}
}
w[++el] = x;
for (j=el2;j>=1;j--)
w[++el] = aux[j];
}
void adauga (int x, int y){
drum (x,y);
/// in w am lantul de la x la y
int t = 0, lg = el;
for (int i=1;i<=el;i++){
int nod = w[i];
update_aint (1,1,n,posAib[nod],1,t,lg);
t++;
}
}
void scoate (int x, int y){
drum (x,y);
int t = 0, lg = el;
for (int i=1;i<=el;i++){
int nod = w[i];
update_aint (1,1,n,posAib[nod],-1,t,lg);
t++;
}
}
void query_heavy (int x, int y, int a, int b){
if (whatChain[x] == whatChain[y]){
int posx = posAib[x], posy = posAib[y];
if (posx > posy)
swap (posx,posy);
sum += get_sum (a,b,posx,posy);
return;
}
if (level[chainFatherNode[whatChain[x]]] <= level[chainFatherNode[whatChain[y]]])
swap (x,y);
sum += get_sum (a,b,posAib[x],posAib[ chains[whatChain[x]][ chains[whatChain[x]].size()-1 ] ]);
int nr = chainFatherNode[whatChain[x]];
query_heavy (nr,y,a,b);
}
long long solve (int x, int y, int t1, int t2){
long long sol = 0;
for (int a=0;a<20;++a){
if (a > t2)
break;
for (int b=a+1;b<=20;++b){
sum = 0;
query_heavy (x,y,a,b);
if (t2 >= a){
int nr = (t2 - a) / b + 1;
sol += sum * nr;
}
if (t1 >= a){
int nr = (t1 - a) / b + 1;
sol -= sum * nr;
}}}
return sol;
}
int main (){
cin>>n;
for (i=1;i<n;++i){
cin>>x>>y;
L[x].push_back(y);
L[y].push_back(x);
}
dfs (1,0);
int idx = 0;
for (i=1;i<=nr_chains;++i)
for (j=1;j<chains[i].size();++j){
int nod = chains[i][j];
posAib[nod] = ++idx;
}
cin>>m; /// nr inital de traficanti
for (i=1;i<=m;++i){
cin>>x>>y;
adauga (x,y);
}
cin>>q;
for (;q--;){
cin>>tip>>x>>y;
if (tip == 1){
adauga (x,y);
continue;
}
if (tip == 2){
scoate (x,y);
continue;
}
cin>>t1>>t2;
cout<<solve(x,y,t1-1,t2)<<"\n";
}
return 0;
}
Compilation message
traffickers.cpp: In function 'int main()':
traffickers.cpp:446:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (j=1;j<chains[i].size();++j){
~^~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
2944 KB |
Output is correct |
| 2 |
Correct |
14 ms |
4736 KB |
Output is correct |
| 3 |
Correct |
16 ms |
4608 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
390 ms |
28280 KB |
Output is correct |
| 2 |
Correct |
378 ms |
24056 KB |
Output is correct |
| 3 |
Correct |
343 ms |
31176 KB |
Output is correct |
| 4 |
Correct |
351 ms |
27640 KB |
Output is correct |
| 5 |
Correct |
416 ms |
25336 KB |
Output is correct |
| 6 |
Correct |
370 ms |
26616 KB |
Output is correct |
| 7 |
Correct |
372 ms |
27384 KB |
Output is correct |
| 8 |
Correct |
347 ms |
30712 KB |
Output is correct |
| 9 |
Correct |
310 ms |
30968 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3553 ms |
53732 KB |
Time limit exceeded |
| 2 |
Execution timed out |
3509 ms |
58708 KB |
Time limit exceeded |
| 3 |
Execution timed out |
3579 ms |
60124 KB |
Time limit exceeded |
| 4 |
Execution timed out |
3552 ms |
49904 KB |
Time limit exceeded |
| 5 |
Execution timed out |
3563 ms |
52044 KB |
Time limit exceeded |
| 6 |
Execution timed out |
3579 ms |
60044 KB |
Time limit exceeded |
| 7 |
Execution timed out |
3582 ms |
61220 KB |
Time limit exceeded |
| 8 |
Execution timed out |
3573 ms |
60816 KB |
Time limit exceeded |
