Submission #864523

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
8645232023-10-23 07:13:27suiyeetRoller Coaster Railroad (IOI16_railroad)C++14
0 / 100
677 ms52732 KiB
#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
#else
#define debug(...)
#endif
const int MAXN = 600005;
const int inf=1000000500ll;
const long long oo =1000000000000000500ll;
const int MOD = (int)1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair<int,int> pi;
struct fenw {
int fw[MAXN];
void update(int x, int nval){
for(;x<MAXN;x+=x&-x)fw[x]+=nval;
}
void update(int x, int y, int nval){
update(x,nval);
update(y+1,-nval);
}
int point(int x){
int res=0;
for(;x;x-=x&-x)res+=fw[x];
return res;
 
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