Submission #551150

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
551150	2022-04-19T23:24:23 Z	DanerZein	Let's Win the Election (JOI22_ho_t3)	C++14	56 / 100	378 ms	21548 KB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<double,double> dd;
const int MAX=1e9;
bool orden(dd a,dd b){
  if(a.second==b.second) return a.first<b.first;
  return a.second<b.second;
}
int n;
vector<dd> st;
double ka;
double dp[110][110][110];
double knap(int id,int k,int ca){
  if(dp[id][k][ca]!=-1) return dp[id][k][ca];
  if(id==n) {
    if(ca==0 && k==ka) return 0;
    return MAX;
  }
  double ans=knap(id+1,k,ca);
  if(ca!=0){
    ans=min(ans,knap(id+1,k,ca-1)+st[id].first/(ka+1));
    if(k!=ka)
      ans=min(ans,knap(id+1,k+1,ca-1)+st[id].second/(double)(k+1));
  }
  return dp[id][k][ca]=ans;
}
int main(){
  int k; scanf("%d%d",&n,&k);
  for(int i=0;i<n;i++){
    int a,b; scanf("%d%d",&a,&b);
    if(b==-1) b=MAX;
    st.push_back(dd(a,b));
  }
  sort(st.begin(),st.end(),orden);
  double res=MAX;
  for(int i=0;i<k;i++){
    ka=i;
    for(int id=0;id<=n;id++) for(int kk=0;kk<=n;kk++) for(int ca=0;ca<=n;ca++) dp[id][kk][ca]=-1;
    double rp=knap(0,0,k);
    //cout<<i<<": "<<rp<<endl;
    res=min(res,rp);
  }
  printf("%.15f\n",res);
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:29:15: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |   int k; scanf("%d%d",&n,&k);
      |          ~~~~~^~~~~~~~~~~~~~
Main.cpp:31:19: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |     int a,b; scanf("%d%d",&a,&b);
      |              ~~~~~^~~~~~~~~~~~~~

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Runtime error	29 ms	21496 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

Subtask #2
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Runtime error	29 ms	21496 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

Subtask #3
11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 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	312 KB	Output is correct
10	Correct	0 ms	308 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	1 ms	340 KB	Output is correct

Subtask #4
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 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	312 KB	Output is correct
10	Correct	0 ms	308 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	1 ms	340 KB	Output is correct
16	Correct	1 ms	724 KB	Output is correct
17	Correct	1 ms	724 KB	Output is correct
18	Correct	1 ms	692 KB	Output is correct
19	Correct	1 ms	700 KB	Output is correct
20	Correct	1 ms	696 KB	Output is correct
21	Correct	1 ms	724 KB	Output is correct
22	Correct	1 ms	724 KB	Output is correct
23	Correct	1 ms	724 KB	Output is correct
24	Correct	1 ms	688 KB	Output is correct
25	Correct	1 ms	724 KB	Output is correct
26	Correct	1 ms	724 KB	Output is correct
27	Correct	1 ms	724 KB	Output is correct
28	Correct	1 ms	724 KB	Output is correct
29	Correct	1 ms	724 KB	Output is correct
30	Correct	1 ms	724 KB	Output is correct
31	Correct	1 ms	724 KB	Output is correct
32	Correct	1 ms	724 KB	Output is correct
33	Correct	1 ms	724 KB	Output is correct
34	Correct	2 ms	724 KB	Output is correct
35	Correct	1 ms	724 KB	Output is correct
36	Correct	1 ms	724 KB	Output is correct
37	Correct	1 ms	700 KB	Output is correct
38	Correct	1 ms	724 KB	Output is correct
39	Correct	1 ms	724 KB	Output is correct
40	Correct	1 ms	724 KB	Output is correct

Subtask #5
33.0 / 33.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 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	312 KB	Output is correct
10	Correct	0 ms	308 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	1 ms	340 KB	Output is correct
16	Correct	1 ms	724 KB	Output is correct
17	Correct	1 ms	724 KB	Output is correct
18	Correct	1 ms	692 KB	Output is correct
19	Correct	1 ms	700 KB	Output is correct
20	Correct	1 ms	696 KB	Output is correct
21	Correct	1 ms	724 KB	Output is correct
22	Correct	1 ms	724 KB	Output is correct
23	Correct	1 ms	724 KB	Output is correct
24	Correct	1 ms	688 KB	Output is correct
25	Correct	1 ms	724 KB	Output is correct
26	Correct	1 ms	724 KB	Output is correct
27	Correct	1 ms	724 KB	Output is correct
28	Correct	1 ms	724 KB	Output is correct
29	Correct	1 ms	724 KB	Output is correct
30	Correct	1 ms	724 KB	Output is correct
31	Correct	1 ms	724 KB	Output is correct
32	Correct	1 ms	724 KB	Output is correct
33	Correct	1 ms	724 KB	Output is correct
34	Correct	2 ms	724 KB	Output is correct
35	Correct	1 ms	724 KB	Output is correct
36	Correct	1 ms	724 KB	Output is correct
37	Correct	1 ms	700 KB	Output is correct
38	Correct	1 ms	724 KB	Output is correct
39	Correct	1 ms	724 KB	Output is correct
40	Correct	1 ms	724 KB	Output is correct
41	Correct	20 ms	9428 KB	Output is correct
42	Correct	18 ms	9396 KB	Output is correct
43	Correct	47 ms	9428 KB	Output is correct
44	Correct	46 ms	9476 KB	Output is correct
45	Correct	107 ms	9428 KB	Output is correct
46	Correct	100 ms	9428 KB	Output is correct
47	Correct	166 ms	9480 KB	Output is correct
48	Correct	224 ms	9480 KB	Output is correct
49	Correct	242 ms	9476 KB	Output is correct
50	Correct	256 ms	9476 KB	Output is correct
51	Correct	344 ms	9472 KB	Output is correct
52	Correct	378 ms	9428 KB	Output is correct
53	Correct	162 ms	9488 KB	Output is correct
54	Correct	236 ms	9476 KB	Output is correct
55	Correct	192 ms	9480 KB	Output is correct
56	Correct	156 ms	9480 KB	Output is correct
57	Correct	200 ms	9476 KB	Output is correct
58	Correct	197 ms	9480 KB	Output is correct
59	Correct	162 ms	9476 KB	Output is correct
60	Correct	165 ms	9472 KB	Output is correct

Subtask #6
0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	25 ms	21548 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Runtime error	29 ms	21496 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

Submission #551150

Compilation message

Subtask #1 0 / 5.0

Subtask #2 0 / 5.0

Subtask #3 11.0 / 11.0

Subtask #4 12.0 / 12.0

Subtask #5 33.0 / 33.0

Subtask #6 0 / 11.0

Subtask #7 0 / 23.0

Subtask #1
0 / 5.0

Subtask #2
0 / 5.0

Subtask #3
11.0 / 11.0

Subtask #4
12.0 / 12.0

Subtask #5
33.0 / 33.0

Subtask #6
0 / 11.0

Subtask #7
0 / 23.0