Submission #672433

#	Time	Username	Problem	Language	Result	Execution time	Memory
672433		Baytoro	Trading (IZhO13_trading)	C++17	100 / 100	491 ms	24384 KiB

trading

#include <bits/stdc++.h>
using namespace std;
#define ios ios::sync_with_stdio(false); cin.tie(NULL);
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define int long long
#define endl '\n'
void fopn(string name){
	freopen((name+".in").c_str(),"r",stdin);
	freopen((name+".out").c_str(),"w",stdout);
}
const int INF=1e18,mod=1e9+7;
const int N=3e5+5;
int sz;
vector<int> lazy,st;
void innit(int x){
	sz=1;
	while(sz<x)
		sz*=2;
	lazy.assign(2*sz-1,-INF);
	st.assign(2*sz-1,-INF);
}
void push(int x, int l, int r){
	if(r-l==1) return;
	st[2*x+1]=max(st[2*x+1],lazy[x]);
	st[2*x+2]=max(st[2*x+2],lazy[x]);
	lazy[2*x+1]=max(lazy[2*x+1],lazy[x]);
	lazy[2*x+2]=max(lazy[2*x+2],lazy[x]);
	lazy[x]=-INF;
}
void update(int l, int r, int v, int x, int lx, int rx){
	if(l>=rx || r<=lx)
		return;
	if(lx>=l && rx<=r){
		st[x]=max(st[x],v);
		lazy[x]=max(lazy[x],v);
		return;
	}
	push(x,lx,rx);
	int md=(lx+rx)/2;
	update(l,r,v,2*x+1,lx,md);
	update(l,r,v,2*x+2,md,rx);
	st[x]=max(st[2*x+1],st[2*x+2]);
}
void update(int l, int r, int v){
	update(l,r,v,0,0,sz);
}
int get(int i, int x, int lx, int rx){
	if(rx-lx==1)
		return st[x];
	int md=(lx+rx)/2;
	push(x,lx,rx);
	if(i<md)
		return get(i,2*x+1,lx,md);
	else
		return get(i,2*x+2,md,rx);
}
int get(int i){
	return get(i,0,0,sz);
}
int n,m;
void solve(){
	cin>>n>>m;
	innit(n+1);
	while(m--){
		int l,r,v;cin>>l>>r>>v;
		update(l,r+1,v-l,0,0,sz);
	}
	for(int i=1;i<=n;i++)
		cout<<max(0ll,get(i)+i)<<' ';
}
main(){
	//ios;
	int T=1;
	//cin>>T;
	while(T--){
		solve();
	}
}

Compilation message (stderr)

trading.cpp:75:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   75 | main(){
      | ^~~~
trading.cpp: In function 'void fopn(std::string)':
trading.cpp:12:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
trading.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100