Submission #532503

#	Time	Username	Problem	Language	Result	Execution time	Memory
532503		chenyan	Snowball (JOI21_ho_t2)	C++17	100 / 100	88 ms	8540 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define pb emplace_back
#define N 200010
int x[N],now,rmx,lmx,ans[N];
vector<pii> v;
signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n,q,i,j,w;
	cin>>n>>q;
	x[0]=-1e18,x[n+1]=1e18;
	for(i=1;i<=n+1;i++){
		if(i<=n) cin>>x[i];
		v.pb(x[i]-x[i-1],i-1);
	}
	sort(all(v));
	i=0;
	while(q--){
		cin>>w;
		now+=w;
		rmx=max(now,rmx),lmx=min(now,lmx);
		while(rmx-lmx>=v[i].ff){
			if(w>0) ans[v[i].ss]+=v[i].ff+lmx,ans[v[i].ss+1]-=lmx;
			else ans[v[i].ss]+=rmx,ans[v[i].ss+1]+=v[i].ff-rmx;
			i++;
		}
	}
	while(i<v.size()){
		ans[v[i].ss]+=rmx,ans[v[i].ss+1]-=lmx;
		i++;
	}
	for(i=1;i<=n;i++) cout<<ans[i]<<'\n';
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:34:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |  while(i<v.size()){
      |        ~^~~~~~~~~
Main.cpp:15:12: warning: unused variable 'j' [-Wunused-variable]
   15 |  int n,q,i,j,w;
      |            ^

• Subtask 1: 33 / 33
• Subtask 2: 67 / 67