Submission #413181

#	Time	Username	Problem	Language	Result	Execution time	Memory
413181		Ahmadsm2005	Meetings (IOI18_meetings)	C++14	0 / 100	455 ms	381732 KiB

meetings

#include "meetings.h"
//#include "grader.cpp"
#pragma GCC optimize("trapv")
#include<bits/stdc++.h>
using namespace std;
vector<long long>LL,RR;
vector<int>h;
long long ACC[5001][5001],DP[5001][5001];
long long query(int L,int R){
long long miner=(int)2e18;
for(int i=L;i<=R;i++){
//cout<<R<<' '<<i<<' '<<DP[R][i]<<endl;
miner=min(miner,DP[L][i]+DP[R][i]-DP[i][i]);
}
return miner;
}
vector<long long>minimum_costs(vector<int>H,vector<int>L,vector<int>R){
h=H;
vector<long long>ANS;
for(int i=0;i<H.size();i++){
int maxer=0;
for(int l=i;l<H.size();l++)
maxer=max(maxer,H[l]),ACC[i][l]=maxer;
}
for(int i=0;i<H.size();i++){
long long CUR=0;
for(int l=0;l<=i;l++)
CUR+=ACC[l][i];
for(int l=0;l<H.size();l++)
DP[l][i]=CUR,CUR-=ACC[l][i];
CUR=0;
for(int l=i;l<H.size();l++)
CUR+=ACC[i][l],DP[l][i]=CUR;
}
for(int i=0;i<L.size();i++)
ANS.push_back(query(L[i],R[i]));
return ANS;
}

Compilation message (stderr)

meetings.cpp: In function 'std::vector<long long int> minimum_costs(std::vector<int>, std::vector<int>, std::vector<int>)':
meetings.cpp:20:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | for(int i=0;i<H.size();i++){
      |             ~^~~~~~~~~
meetings.cpp:22:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 | for(int l=i;l<H.size();l++)
      |             ~^~~~~~~~~
meetings.cpp:25:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 | for(int i=0;i<H.size();i++){
      |             ~^~~~~~~~~
meetings.cpp:29:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 | for(int l=0;l<H.size();l++)
      |             ~^~~~~~~~~
meetings.cpp:32:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 | for(int l=i;l<H.size();l++)
      |             ~^~~~~~~~~
meetings.cpp:35:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 | for(int i=0;i<L.size();i++)
      |             ~^~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 0 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40