답안 #398518

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
398518	2021-05-04T12:57:02 Z	model_code	Peru (RMI20_peru)	C++17	100 / 100	157 ms	57724 KB

peru

/**
* user:  ivan-df9
* fname: Tudor
* lname: Ivan
* task:  Peru
* score: 100.0
* date:  2020-12-03 13:09:25.222712
*/
#include "peru.h"
#include<bits/stdc++.h>
using namespace std;
const int N = 2500005;
long long dp[N];
const long long MOD = 1e9 + 7;
struct dqueelem{
  int i;
  long long dpi;
  long long dmin;
};
deque<dqueelem> dq;

bool indeq[N];

/*inline void addmn(int i, int val){
  if(indeq[i] == true)
    return;
  while(mndq.size() && (indeq[mndq.back().i] == false)){
    mndq.pop_back();
  }
  if(mndq.size() == 0 || mndq.back().dpi > val)
    mndq.push_back({i, val}), indeq[i] =true;

}*/
inline void ppbk(){
  indeq[dq.back().i] = 0;
  dq.pop_back();
}

inline void addbk(int i, int* v){
  if(dq.size() == 0){
    dq.push_back({i, LLONG_MAX, LLONG_MAX});
    return;
  }
  long long dpfr = dp[dq.back().i];
  dqueelem x({i, dpfr + v[i], min(dpfr + v[i], dq.back().dmin)});
  dq.push_back(x);
}
inline void ppfrt(){

  if(dq.size()){
    indeq[dq.front().i] = false;
    dq.pop_front();
  }
  if(dq.size()){
    long long dqf = dq.front().dpi;
    dq.front().dpi = LLONG_MAX;
    dq.front().dmin = LLONG_MAX;
    for(int i=1;i<dq.size();i++){
      if(dq[i].dpi <= dqf)
        break;
      dq[i].dmin = min(dq[i].dpi, dq[i-1].dmin);
    }
    indeq[dq.front().i] = false;
  }
}
int solve(int n, int k, int* v){
  for(int i = 0; i< n ; i++){
    if(dq.size() && i - dq.front().i >= k)
      ppfrt();
    //dbg();
    while(dq.size() && v[i] >= v[dq.back().i])
      ppbk();
    //dbg();
    addbk(i, v);
   // dbg();
    dp[i] = 1LL * v[dq.front().i];
   // for(auto x:dq){
  //    cout<<x.i<<" "<<x.dpi<<" "<<x.dmin<<"\n";
 //   }
  //  cout<<"ok\n";
    if(i - k >= 0 )
      dp[i] += dp[i - k];
   // dbg();
    if(dq.size()){
      dp[i] = min(dp[i], dq.back().dmin);
    }
  }
  long long ans = 0;
  for(int i = 0; i < n; i++){
    ans*=23LL;
    ans%=MOD;
    dp[i]%=MOD;
    ans+=dp[i];
    ans%=MOD;
  }
  dq.clear();
  return ans;
}

Compilation message

peru.cpp: In function 'void ppfrt()':
peru.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<dqueelem>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for(int i=1;i<dq.size();i++){
      |                 ~^~~~~~~~~~

Subtask #1

18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct

Subtask #2

31.0 / 31.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	22 ms	9548 KB	Output is correct
16	Correct	23 ms	9584 KB	Output is correct
17	Correct	25 ms	9488 KB	Output is correct
18	Correct	26 ms	9524 KB	Output is correct
19	Correct	25 ms	9556 KB	Output is correct
20	Correct	25 ms	9648 KB	Output is correct
21	Correct	26 ms	9532 KB	Output is correct
22	Correct	25 ms	9524 KB	Output is correct
23	Correct	27 ms	9604 KB	Output is correct
24	Correct	25 ms	9496 KB	Output is correct
25	Correct	36 ms	9524 KB	Output is correct
26	Correct	26 ms	9480 KB	Output is correct
27	Correct	25 ms	9488 KB	Output is correct
28	Correct	19 ms	9496 KB	Output is correct
29	Correct	21 ms	9816 KB	Output is correct
30	Correct	21 ms	9592 KB	Output is correct
31	Correct	30 ms	9576 KB	Output is correct
32	Correct	22 ms	9572 KB	Output is correct
33	Correct	29 ms	9536 KB	Output is correct

Subtask #3

51.0 / 51.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	9548 KB	Output is correct
2	Correct	23 ms	9584 KB	Output is correct
3	Correct	25 ms	9488 KB	Output is correct
4	Correct	26 ms	9524 KB	Output is correct
5	Correct	25 ms	9556 KB	Output is correct
6	Correct	25 ms	9648 KB	Output is correct
7	Correct	26 ms	9532 KB	Output is correct
8	Correct	25 ms	9524 KB	Output is correct
9	Correct	27 ms	9604 KB	Output is correct
10	Correct	25 ms	9496 KB	Output is correct
11	Correct	36 ms	9524 KB	Output is correct
12	Correct	26 ms	9480 KB	Output is correct
13	Correct	25 ms	9488 KB	Output is correct
14	Correct	19 ms	9496 KB	Output is correct
15	Correct	21 ms	9816 KB	Output is correct
16	Correct	21 ms	9592 KB	Output is correct
17	Correct	30 ms	9576 KB	Output is correct
18	Correct	22 ms	9572 KB	Output is correct
19	Correct	29 ms	9536 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	124 ms	33964 KB	Output is correct
35	Correct	132 ms	55860 KB	Output is correct
36	Correct	130 ms	55812 KB	Output is correct
37	Correct	157 ms	55872 KB	Output is correct
38	Correct	119 ms	55836 KB	Output is correct
39	Correct	126 ms	55824 KB	Output is correct
40	Correct	137 ms	55760 KB	Output is correct
41	Correct	142 ms	55768 KB	Output is correct
42	Correct	150 ms	55904 KB	Output is correct
43	Correct	48 ms	22604 KB	Output is correct
44	Correct	94 ms	34772 KB	Output is correct
45	Correct	94 ms	34716 KB	Output is correct
46	Correct	99 ms	34660 KB	Output is correct
47	Correct	153 ms	56968 KB	Output is correct
48	Correct	143 ms	57024 KB	Output is correct
49	Correct	118 ms	57188 KB	Output is correct
50	Correct	115 ms	57696 KB	Output is correct
51	Correct	156 ms	57460 KB	Output is correct
52	Correct	115 ms	57724 KB	Output is correct
53	Correct	136 ms	57652 KB	Output is correct
54	Correct	132 ms	55660 KB	Output is correct
55	Correct	119 ms	55756 KB	Output is correct
56	Correct	134 ms	55656 KB	Output is correct
57	Correct	133 ms	55800 KB	Output is correct
58	Correct	121 ms	55756 KB	Output is correct
59	Correct	145 ms	55724 KB	Output is correct
60	Correct	122 ms	55788 KB	Output is correct
61	Correct	139 ms	57548 KB	Output is correct
62	Correct	154 ms	57528 KB	Output is correct
63	Correct	137 ms	57504 KB	Output is correct