| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 935809 | 2024-02-29T14:35:01 Z | 8pete8 | Chorus (JOI23_chorus) | C++17 | 7000 ms | 221268 KB |
#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<cassert>
#include<limits.h>
#include<cmath>
#include<set>
#include<numeric> //gcd(a,b)
#include<algorithm>
#include<bitset>
#include<stack>
using namespace std;
#define ll long long
#define f first
#define endl "\n"
#define s second
#define pii pair<int,int>
#define pppiiii pair<pii,pii>
#define ppii pair<int,pii>
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define pb push_back
//#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-loops")
#define int long long
const int mod=1e9+7,mxn=5005,lg=30,inf=1e18,minf=-1e18,Mxn=2e6,root=700;
void setIO(string name){
ios_base::sync_with_stdio(0); cin.tie(0);
freopen((name+".in").c_str(),"r",stdin);
freopen((name+".out").c_str(),"w",stdout);
}
int dp[mxn+10][mxn+10];
int cost[mxn+10][mxn+10];
int pref[mxn*2+10];
vector<int>A,B;
int n,k;
string a;
void getcost(int st){
int curcost=0;
for(int i=A[st];i<=n*2;i++){
if(a[i]=='A')pref[i]++;
pref[i]+=pref[i-1];
}
for(int i=st;i<=n;i++){
cost[st][i]=cost[st][i-1]+pref[B[i]];
}
for(int i=A[st];i<=2*n;i++)pref[i]=0;
/*
when introduced new B
*/
}
int32_t main(){
fastio
cin>>n>>k;
cin>>a;
reverse(all(a));
a='G'+a;
A.pb(69);
B.pb(420);
for(int i=1;i<=n*2;i++){
if(a[i]=='A')A.pb(i);
else B.pb(i);
}
for(int i=1;i<=n;i++)getcost(i);
for(int i=0;i<=k;i++)for(int j=1;j<=n;j++)dp[j][i]=inf;
dp[0][0]=0;
for(int i=1;i<=k;i++){//choose k use pref j
for(int j=1;j<=n;j++){
for(int g=1;g<=j;g++){
dp[j][i]=min(dp[j][i],dp[g-1][i-1]+cost[g][j]);
}
}
}
cout<<dp[n][k];
//can op to (n^2logn)? dac dp?
//too lazy to prove :((
}
Compilation message
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 2392 KB | Output is correct |
| 2 | Correct | 1 ms | 2396 KB | Output is correct |
| 3 | Correct | 1 ms | 2396 KB | Output is correct |
| 4 | Correct | 1 ms | 4444 KB | Output is correct |
| 5 | Correct | 1 ms | 2648 KB | Output is correct |
| 6 | Correct | 1 ms | 4440 KB | Output is correct |
| 7 | Correct | 1 ms | 4444 KB | Output is correct |
| 8 | Correct | 1 ms | 4700 KB | Output is correct |
| 9 | Correct | 1 ms | 4440 KB | Output is correct |
| 10 | Correct | 2 ms | 4444 KB | Output is correct |
| 11 | Correct | 1 ms | 4444 KB | Output is correct |
| 12 | Correct | 1 ms | 4444 KB | Output is correct |
| 13 | Correct | 1 ms | 4444 KB | Output is correct |
| 14 | Correct | 1 ms | 4552 KB | Output is correct |
| 15 | Correct | 1 ms | 4444 KB | Output is correct |
| 16 | Correct | 1 ms | 4444 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 2392 KB | Output is correct |
| 2 | Correct | 1 ms | 2396 KB | Output is correct |
| 3 | Correct | 1 ms | 2396 KB | Output is correct |
| 4 | Correct | 1 ms | 4444 KB | Output is correct |
| 5 | Correct | 1 ms | 2648 KB | Output is correct |
| 6 | Correct | 1 ms | 4440 KB | Output is correct |
| 7 | Correct | 1 ms | 4444 KB | Output is correct |
| 8 | Correct | 1 ms | 4700 KB | Output is correct |
| 9 | Correct | 1 ms | 4440 KB | Output is correct |
| 10 | Correct | 2 ms | 4444 KB | Output is correct |
| 11 | Correct | 1 ms | 4444 KB | Output is correct |
| 12 | Correct | 1 ms | 4444 KB | Output is correct |
| 13 | Correct | 1 ms | 4444 KB | Output is correct |
| 14 | Correct | 1 ms | 4552 KB | Output is correct |
| 15 | Correct | 1 ms | 4444 KB | Output is correct |
| 16 | Correct | 1 ms | 4444 KB | Output is correct |
| 17 | Correct | 3 ms | 11356 KB | Output is correct |
| 18 | Correct | 21 ms | 27740 KB | Output is correct |
| 19 | Correct | 49 ms | 27740 KB | Output is correct |
| 20 | Correct | 7 ms | 27992 KB | Output is correct |
| 21 | Correct | 7 ms | 27740 KB | Output is correct |
| 22 | Correct | 87 ms | 27828 KB | Output is correct |
| 23 | Correct | 84 ms | 27828 KB | Output is correct |
| 24 | Correct | 8 ms | 27740 KB | Output is correct |
| 25 | Correct | 83 ms | 27816 KB | Output is correct |
| 26 | Correct | 71 ms | 27740 KB | Output is correct |
| 27 | Correct | 32 ms | 27992 KB | Output is correct |
| 28 | Correct | 32 ms | 27840 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 2392 KB | Output is correct |
| 2 | Correct | 1 ms | 2396 KB | Output is correct |
| 3 | Correct | 1 ms | 2396 KB | Output is correct |
| 4 | Correct | 1 ms | 4444 KB | Output is correct |
| 5 | Correct | 1 ms | 2648 KB | Output is correct |
| 6 | Correct | 1 ms | 4440 KB | Output is correct |
| 7 | Correct | 1 ms | 4444 KB | Output is correct |
| 8 | Correct | 1 ms | 4700 KB | Output is correct |
| 9 | Correct | 1 ms | 4440 KB | Output is correct |
| 10 | Correct | 2 ms | 4444 KB | Output is correct |
| 11 | Correct | 1 ms | 4444 KB | Output is correct |
| 12 | Correct | 1 ms | 4444 KB | Output is correct |
| 13 | Correct | 1 ms | 4444 KB | Output is correct |
| 14 | Correct | 1 ms | 4552 KB | Output is correct |
| 15 | Correct | 1 ms | 4444 KB | Output is correct |
| 16 | Correct | 1 ms | 4444 KB | Output is correct |
| 17 | Correct | 3 ms | 11356 KB | Output is correct |
| 18 | Correct | 21 ms | 27740 KB | Output is correct |
| 19 | Correct | 49 ms | 27740 KB | Output is correct |
| 20 | Correct | 7 ms | 27992 KB | Output is correct |
| 21 | Correct | 7 ms | 27740 KB | Output is correct |
| 22 | Correct | 87 ms | 27828 KB | Output is correct |
| 23 | Correct | 84 ms | 27828 KB | Output is correct |
| 24 | Correct | 8 ms | 27740 KB | Output is correct |
| 25 | Correct | 83 ms | 27816 KB | Output is correct |
| 26 | Correct | 71 ms | 27740 KB | Output is correct |
| 27 | Correct | 32 ms | 27992 KB | Output is correct |
| 28 | Correct | 32 ms | 27840 KB | Output is correct |
| 29 | Execution timed out | 7012 ms | 221268 KB | Time limit exceeded |
| 30 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 2392 KB | Output is correct |
| 2 | Correct | 1 ms | 2396 KB | Output is correct |
| 3 | Correct | 1 ms | 2396 KB | Output is correct |
| 4 | Correct | 1 ms | 4444 KB | Output is correct |
| 5 | Correct | 1 ms | 2648 KB | Output is correct |
| 6 | Correct | 1 ms | 4440 KB | Output is correct |
| 7 | Correct | 1 ms | 4444 KB | Output is correct |
| 8 | Correct | 1 ms | 4700 KB | Output is correct |
| 9 | Correct | 1 ms | 4440 KB | Output is correct |
| 10 | Correct | 2 ms | 4444 KB | Output is correct |
| 11 | Correct | 1 ms | 4444 KB | Output is correct |
| 12 | Correct | 1 ms | 4444 KB | Output is correct |
| 13 | Correct | 1 ms | 4444 KB | Output is correct |
| 14 | Correct | 1 ms | 4552 KB | Output is correct |
| 15 | Correct | 1 ms | 4444 KB | Output is correct |
| 16 | Correct | 1 ms | 4444 KB | Output is correct |
| 17 | Correct | 3 ms | 11356 KB | Output is correct |
| 18 | Correct | 21 ms | 27740 KB | Output is correct |
| 19 | Correct | 49 ms | 27740 KB | Output is correct |
| 20 | Correct | 7 ms | 27992 KB | Output is correct |
| 21 | Correct | 7 ms | 27740 KB | Output is correct |
| 22 | Correct | 87 ms | 27828 KB | Output is correct |
| 23 | Correct | 84 ms | 27828 KB | Output is correct |
| 24 | Correct | 8 ms | 27740 KB | Output is correct |
| 25 | Correct | 83 ms | 27816 KB | Output is correct |
| 26 | Correct | 71 ms | 27740 KB | Output is correct |
| 27 | Correct | 32 ms | 27992 KB | Output is correct |
| 28 | Correct | 32 ms | 27840 KB | Output is correct |
| 29 | Execution timed out | 7012 ms | 221268 KB | Time limit exceeded |
| 30 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 2392 KB | Output is correct |
| 2 | Correct | 1 ms | 2396 KB | Output is correct |
| 3 | Correct | 1 ms | 2396 KB | Output is correct |
| 4 | Correct | 1 ms | 4444 KB | Output is correct |
| 5 | Correct | 1 ms | 2648 KB | Output is correct |
| 6 | Correct | 1 ms | 4440 KB | Output is correct |
| 7 | Correct | 1 ms | 4444 KB | Output is correct |
| 8 | Correct | 1 ms | 4700 KB | Output is correct |
| 9 | Correct | 1 ms | 4440 KB | Output is correct |
| 10 | Correct | 2 ms | 4444 KB | Output is correct |
| 11 | Correct | 1 ms | 4444 KB | Output is correct |
| 12 | Correct | 1 ms | 4444 KB | Output is correct |
| 13 | Correct | 1 ms | 4444 KB | Output is correct |
| 14 | Correct | 1 ms | 4552 KB | Output is correct |
| 15 | Correct | 1 ms | 4444 KB | Output is correct |
| 16 | Correct | 1 ms | 4444 KB | Output is correct |
| 17 | Correct | 3 ms | 11356 KB | Output is correct |
| 18 | Correct | 21 ms | 27740 KB | Output is correct |
| 19 | Correct | 49 ms | 27740 KB | Output is correct |
| 20 | Correct | 7 ms | 27992 KB | Output is correct |
| 21 | Correct | 7 ms | 27740 KB | Output is correct |
| 22 | Correct | 87 ms | 27828 KB | Output is correct |
| 23 | Correct | 84 ms | 27828 KB | Output is correct |
| 24 | Correct | 8 ms | 27740 KB | Output is correct |
| 25 | Correct | 83 ms | 27816 KB | Output is correct |
| 26 | Correct | 71 ms | 27740 KB | Output is correct |
| 27 | Correct | 32 ms | 27992 KB | Output is correct |
| 28 | Correct | 32 ms | 27840 KB | Output is correct |
| 29 | Execution timed out | 7012 ms | 221268 KB | Time limit exceeded |
| 30 | Halted | 0 ms | 0 KB | - |