Submission #444760

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
444760	2021-07-15 06:33:13	impri	Split the sequence (APIO14_sequence)	C++14	100 / 100	1409 ms	89632 KiB

sequence

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#include<bits/stdc++.h>
using namespace std;
int n,k;
int arr[100001];
long long psum[100001];
long long dp[100001][2];
int res[100001][201];
struct line{
long long a,b;
double s;
int p;
};
int main(void){
cin >> n >> k;
k++;
for(int i=1;i<=n;i++)
    cin >> arr[i];
for(int i=1;i<=n;i++)
    psum[i]=psum[i-1]+arr[i];
for(int i=1;i<n;i++)
    dp[i][1]=psum[i]*(psum[n]-psum[i]);
for(int i=2;i<=k;i++){
    vector<line>lines;
    lines.push_back({-psum[i-1],dp[i-1][(i+1)%2],10e15,i-1});
    int cur=0;
    for(int j=i;j<=n;j++){
        while(1){
            if(cur+1==lines.size())break;
            if(lines[cur+1].s<(psum[n]-psum[j]))break;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

sequence.cpp: In function 'int main()':
sequence.cpp:29:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |             if(cur+1==lines.size())break;
      |                ~~~~~^~~~~~~~~~~~~~
sequence.cpp:46:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |                 if(cur==lines.size())
      |                    ~~~^~~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 17 / 17
• Subtask 5: 21 / 21
• Subtask 6: 29 / 29