제출 #168067

#제출 시각아이디문제언어결과실행 시간메모리
168067GioChkhaidzeK개의 묶음 (IZhO14_blocks)C++14
100 / 100
246 ms42872 KiB
#include <bits/stdc++.h> #define F first #define S second using namespace std; const int N=1e5+5,K=105; int n,k; int a[N],dp[N][K]; stack < pair < int , int > > st ; main ( ){ scanf("%d%d",&n,&k); for (int i=1; i<=n; i++) { scanf("%d",&a[i]); dp[i][1]=max(dp[i-1][1],a[i]); } for (int j=2; j<=k; j++) { while (st.size()) st.pop(); for (int i=j; i<=n; i++) { int h=a[i],up=dp[i-1][j-1]; while (st.size() && st.top().F<=h) { up=min(up,st.top().S); st.pop(); } if (!st.size() || st.top().F+st.top().S>=up+h) st.push({h,up}); dp[i][j]=st.top().F+st.top().S; } } printf("%d\n",dp[n][k]); }

컴파일 시 표준 에러 (stderr) 메시지

blocks.cpp:9:8: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main ( ){
        ^
blocks.cpp: In function 'int main()':
blocks.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&k);
  ~~~~~^~~~~~~~~~~~~~
blocks.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...