#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
const long long NMAX = 3e5;
struct node_t{
long long breaking_point;
long long l,r;
long long real_l,real_r;
long long cst;
node_t operator + (const node_t &other)const{
node_t ans;
ans.cst = this->cst + other.cst;
ans.real_l = max(this->real_l,other.real_l);
ans.real_r = min(this->real_r,other.real_r);
if(ans.real_l <= ans.real_r){
ans.breaking_point = ans.real_r;
ans.cst = 0LL;
ans.l = ans.real_l;
ans.r = ans.real_r;
}
else{
if(this->real_l <= this->real_r){
if(other.real_l <= other.real_r){
if(this->r < other.l){
ans.cst += 0LL;
ans.l = ans.r = other.l;
ans.breaking_point = this->r;
}
else{
ans.cst += this->l - other.r;
ans.l = ans.r = other.r;
ans.breaking_point = this->l;
}
}
else{
ans.l = other.l;ans.r = other.r;
if(other.breaking_point > this-> r){
ans.breaking_point = this->breaking_point;
ans.cst += other.cst;
}
else if(other.breaking_point >= this->l){
ans.breaking_point = other.breaking_point;
ans.cst += 0LL;
}
else{
ans.breaking_point = this->l;
ans.cst += this->l - other.breaking_point;
}
}
}
else{
if(this->l >= other.breaking_point){
ans.cst += this->l - other.breaking_point;
}
ans.breaking_point = this->breaking_point;
if(other.r < this->l){
ans.l = ans.r = other.r;
}
else if(other.l <= this->l){
ans.l = ans.r = this->l;
}
else{
ans.l = ans.r = other.l;
}
}
}
return ans;
}
};
class SegTree{
public:
long long n;
node_t aint[NMAX * 4 + 5];
void build(long long nod,long long st,long long dr,pair<long long,long long> v[]){
if(st == dr){
aint[nod].l = aint[nod].real_l = v[st].first;
aint[nod].r = aint[nod].real_r = v[st].second;
aint[nod].breaking_point = aint[nod].real_r;
aint[nod].cst = 0LL;
return ;
}
long long mid = (st + dr) / 2;
build(nod * 2,st,mid,v);
build(nod * 2 + 1,mid + 1,dr,v);
aint[nod] = aint[nod * 2] + aint[nod * 2 + 1];
}
void update(long long nod,long long st,long long dr,long long pos,pair<long long,long long> val){
if(pos < st || pos > dr){
return ;
}
if(st == dr){
aint[nod].l = aint[nod].real_l = val.first;
aint[nod].r = aint[nod].real_r = val.second;
aint[nod].breaking_point = aint[nod].real_r;
aint[nod].cst = 0LL;
return ;
}
long long mid = (st + dr) / 2;
update(nod * 2,st,mid,pos,val);
update(nod * 2 + 1,mid + 1,dr,pos,val);
aint[nod] = aint[nod * 2] + aint[nod * 2 + 1];
}
SegTree(long long n,pair<long long,long long> v[]){
this->n = n;
build(1,1,n,v);
}
node_t query(long long nod,long long st,long long dr,long long l,long long r){
if(l <= st && dr <= r){
return aint[nod];
}
long long mid = (st + dr) / 2;
if(l > mid){
return query(nod * 2 + 1,mid + 1,dr,l,r);
}
else if(r <= mid){
return query(nod * 2,st,mid,l,r);
}
else{
return query(nod * 2,st,mid,l,r) + query(nod * 2 + 1,mid + 1,dr,l,r);
}
}
};
long long n,q;
pair<long long,long long> fst[NMAX + 5];
pair<long long,long long> snd[NMAX + 5];
int main(){
scanf("%lld %lld",&n,&q);
for(long long i = 1;i < n;i++){
scanf("%lld %lld",&fst[i].first,&fst[i].second);
fst[i].second--;
snd[n - i] = fst[i];
}
for(long long i = 1;i < n;i++){
fst[i].first -= i;
fst[i].second -= i;
snd[i].first -= i;
snd[i].second -= i;
}
SegTree norm(n - 1,fst);
SegTree rev(n - 1,snd);
while(q--){
long long t;
scanf("%lld",&t);
if(t == 1){
long long p,l,r;
scanf("%lld %lld %lld",&p,&l,&r);
r--;
norm.update(1,1,n - 1,p,{l - p,r - p});
rev.update(1,1,n - 1,n - p,{l - (n - p),r - (n - p)});
}
else{
long long a,b,c,d;
scanf("%lld %lld %lld %lld",&a,&b,&c,&d);
if(a == c){
printf("%lld\n",max(0LL,(long long)b - d));
}
else if(a < c){
b -= a;
d -= c;
node_t tmp = norm.query(1,1,n - 1,a,c - 1);
long long ext_wh = -1;
if(b > tmp.r){
ext_wh = tmp.r;
}
else if(b >= tmp.l){
ext_wh = b;
}
else{
ext_wh = tmp.l;
}
long long ans = tmp.cst + max(0LL,b - tmp.breaking_point) + max(0LL,ext_wh - d);
printf("%lld\n",ans);
}
else{
a = n + 1 - a;
c = n + 1 - c;
b -= a;
d -= c;
node_t tmp = rev.query(1,1,n - 1,a,c - 1);
long long ext_wh = -1;
if(b > tmp.r){
ext_wh = tmp.r;
}
else if(b >= tmp.l){
ext_wh = b;
}
else{
ext_wh = tmp.l;
}
long long ans = tmp.cst + max(0LL,b - tmp.breaking_point) + max(0LL,ext_wh - d);
printf("%lld\n",ans);
}
}
}
return 0;
}
Compilation message
timeleap.cpp: In function 'int main()':
timeleap.cpp:149:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld",&n,&q);
~~~~~^~~~~~~~~~~~~~~~~~~
timeleap.cpp:152:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld",&fst[i].first,&fst[i].second);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:169:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld",&t);
~~~~~^~~~~~~~~~~
timeleap.cpp:173:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld %lld",&p,&l,&r);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:180:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld %lld %lld",&a,&b,&c,&d);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
802 ms |
113096 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
