#include <bits/stdc++.h>
using namespace std ;
//#define int int64_t //be careful about this
#define endl "\n"
#define f(i,a,b) for(int i=int(a);i<int(b);++i)
#define pr pair
#define ar array
#define fr first
#define sc second
#define vt vector
#define pb push_back
#define eb emplace_back
#define LB lower_bound
#define UB upper_bound
#define PQ priority_queue
#define sz(x) ((int)(x).size())
#define all(a) (a).begin(),(a).end()
#define allr(a) (a).rbegin(),(a).rend()
#define mem0(a) memset(a, 0, sizeof(a))
#define mem1(a) memset(a, -1, sizeof(a))
template<class A> void rd(vt<A>& v);
template<class T> void rd(T& x){ cin >> x; }
template<class H, class... T> void rd(H& h, T&... t) { rd(h) ; rd(t...) ;}
template<class A> void rd(vt<A>& x) { for(auto& a : x) rd(a) ;}
template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
template<typename T>
void __p(T a) {
cout<<a;
}
template<typename T, typename F>
void __p(pair<T, F> a) {
cout<<"{";
__p(a.first);
cout<<",";
__p(a.second);
cout<<"}\n";
}
template<typename T>
void __p(std::vector<T> a) {
cout<<"{";
for(auto it=a.begin(); it<a.end(); it++)
__p(*it),cout<<",}\n"[it+1==a.end()];
}
template<typename T, typename ...Arg>
void __p(T a1, Arg ...a) {
__p(a1);
__p(a...);
}
template<typename Arg1>
void __f(const char *name, Arg1 &&arg1) {
cout<<name<<" : ";
__p(arg1);
cout<<endl;
}
template<typename Arg1, typename ... Args>
void __f(const char *names, Arg1 &&arg1, Args &&... args) {
int bracket=0,i=0;
for(;; i++)
if(names[i]==','&&bracket==0)
break;
else if(names[i]=='(')
bracket++;
else if(names[i]==')')
bracket--;
const char *comma=names+i;
cout.write(names,comma-names)<<" : ";
__p(arg1);
cout<<" | ";
__f(comma+1,args...);
}
void setIO(string s = "") {
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin.exceptions(cin.failbit);
cout.precision(15); cout << fixed;
#ifdef ONLINE_JUDGE
if(sz(s)){
freopen((s+".in").c_str(),"r",stdin);
freopen((s+".out").c_str(),"w",stdout);
}
#define __f(...) 0
#endif
}
/*
Description :- Sparse segment tree
Source :- USACO
Verification :-
*/
struct Node {
int sum, lazy, tl, tr, l, r;// node cover [tl,tr], also lazy is not added to current node;
Node() : sum(0), lazy(0), l(-1), r(-1) {}
};
const int MAXN = 123456;
Node st[64 * MAXN];
int cnt = 2;
void propogate(int x) {
if (st[x].lazy) {
st[x].sum = st[x].tr - st[x].tl + 1;
int mid = (st[x].tl + st[x].tr) / 2;
if (st[x].l == -1) {
st[x].l = cnt++;
st[st[x].l].tl = st[x].tl;
st[st[x].l].tr = mid;
}
if (st[x].r == -1) {
st[x].r = cnt++;
st[st[x].r].tl = mid + 1;
st[st[x].r].tr = st[x].tr;
}
st[st[x].l].lazy = st[st[x].r].lazy = 1;
st[x].lazy = 0;
}
}
void update(int x, int l, int r) {
propogate(x);
if (l == st[x].tl && r == st[x].tr) {
st[x].lazy = 1;
propogate(x);
} else {
int mid = (st[x].tl + st[x].tr) / 2;
if (st[x].l == -1) {
st[x].l = cnt++;
st[st[x].l].tl = st[x].tl;
st[st[x].l].tr = mid;
}
if (st[x].r == -1) {
st[x].r = cnt++;
st[st[x].r].tl = mid + 1;
st[st[x].r].tr = st[x].tr;
}
if (l > mid) update(st[x].r, l, r);
else if (r <= mid) update(st[x].l, l, r);
else {
update(st[x].l, l, mid);
update(st[x].r, mid + 1, r);
}
propogate(st[x].l);
propogate(st[x].r);
st[x].sum = st[st[x].l].sum + st[st[x].r].sum;
}
}
int query(int x, int l, int r) {
propogate(x);
if (l == st[x].tl && r == st[x].tr) return st[x].sum;
else {
int mid = (st[x].tl + st[x].tr) / 2;
if (st[x].l == -1) {
st[x].l = cnt++;
st[st[x].l].tl = st[x].tl;
st[st[x].l].tr = mid;
}
if (st[x].r == -1) {
st[x].r = cnt++;
st[st[x].r].tl = mid + 1;
st[st[x].r].tr = st[x].tr;
}
if (l > mid) return query(st[x].r, l, r);
else if (r <= mid) return query(st[x].l, l, r);
else return query(st[x].l, l, mid) + query(st[x].r, mid + 1, r);
}
}
signed main(){
setIO() ;
int q; rd(q);
st[1].sum = 0; st[1].lazy = 0;
st[1].tl = 1, st[1].tr = int(2e9);
int c = 0;
while(q--){
int t,l,r; rd(t,l,r);
if(t == 1){
c = query(1, l + c, r + c);
cout << c << endl;
}else{
update(1,l + c, r + c);
}
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
85 ms |
185756 KB |
Output is correct |
| 2 |
Correct |
87 ms |
185772 KB |
Output is correct |
| 3 |
Correct |
85 ms |
185764 KB |
Output is correct |
| 4 |
Correct |
99 ms |
185912 KB |
Output is correct |
| 5 |
Correct |
104 ms |
186028 KB |
Output is correct |
| 6 |
Correct |
102 ms |
186036 KB |
Output is correct |
| 7 |
Correct |
104 ms |
185956 KB |
Output is correct |
| 8 |
Correct |
214 ms |
186928 KB |
Output is correct |
| 9 |
Correct |
359 ms |
187944 KB |
Output is correct |
| 10 |
Correct |
366 ms |
188032 KB |
Output is correct |
| 11 |
Correct |
368 ms |
187996 KB |
Output is correct |
| 12 |
Correct |
371 ms |
188080 KB |
Output is correct |
| 13 |
Correct |
336 ms |
188300 KB |
Output is correct |
| 14 |
Correct |
343 ms |
188348 KB |
Output is correct |
| 15 |
Correct |
447 ms |
188528 KB |
Output is correct |
| 16 |
Correct |
458 ms |
188612 KB |
Output is correct |
| 17 |
Correct |
335 ms |
188412 KB |
Output is correct |
| 18 |
Correct |
338 ms |
188532 KB |
Output is correct |
| 19 |
Correct |
451 ms |
188444 KB |
Output is correct |
| 20 |
Correct |
451 ms |
188500 KB |
Output is correct |
