Submission #532503

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
532503	2022-03-03 03:30:31	chenyan	Snowball (JOI21_ho_t2)	C++17	100 / 100	88 ms	8540 KiB

Main

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#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;
 
 
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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