Submission #227373

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
227373	2020-04-27 07:59:07	cgiosy	조개 줍기 (KOI17_shell)	C++17	46 / 100	2060 ms	13944 KiB

shell

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#include <bits/stdc++.h>
using namespace std;
alignas(64) int A[1520][1520]{};
int main() {
  ios::sync_with_stdio(0);cin.tie(0);
  int N; long long s=0;
  cin>>N;
  for(int i=1; i<=N; i++) for(int j=1; j<=N; j++) {
    cin>>A[i][j];
    s+=A[i][j]+=max(A[i-1][j], A[i][j-1]);
  }
  cout<<s<<'\n';
  for(int q=0; q<N; q++) {
    char t;
    int i, l;
    cin>>t>>i>>l;
    int r=l+1;
    if(t=='U') while(l<r) {
      while(r<=N && A[i-1][r]<A[i][r-1]+1) r++;
      for(int j=l; j<r; j++) A[i][j]++;
      s+=r-l;
      if(++i>N) break;
      while(l<r && A[i-1][l]<=A[i][l-1]) l++;
    } else while(l<r) {
      while(r<=N && A[i-1][r]<=A[i][r-1]-1) r++;
      for(int j=l; j<r; j++) A[i][j]--;
      s-=r-l;
      if(++i>N) break;
      while(l<r && A[i-1][l]<A[i][l-1]) l++;
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 34 / 34
• Subtask 3: 0 / 54