oj.uz

Submission #347397

# Submission time Handle Problem Language Result Execution time Memory
347397 2021-01-12T20:31:12 Z Kerim JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 7 ms 2548 KB 
#include "bits/stdc++.h"
#define MAXN 200009
#define INF 1000000007
#define mp(x,y) make_pair(x,y)
#define all(v) v.begin(),v.end()
#define pb(x) push_back(x)
#define wr cout<<"----------------"<<endl;
#define ppb() pop_back()
#define tr(ii,c) for(__typeof((c).begin()) ii=(c).begin();ii!=(c).end();ii++)
#define ff first
#define ss second
#define my_little_dodge 46
#define debug(x)  cerr<< #x <<" = "<< x<<endl;
using namespace std;

typedef long long ll;
typedef pair<int,int> PII;
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
char s[MAXN];
int par[MAXN];
int main(){
    //freopen("file.in", "r", stdin);
    int n,k;
    scanf("%d%d",&n,&k);
    scanf("%s",s+1);
    vector<int>J,I;
    for(int i=1;i<=n;i++){
    	if(s[i]=='J')J.pb(i);
    	else if(s[i]=='I')I.pb(i);
    	else par[i]++;
    	par[i]+=par[i-1];
    }
    int ans=INF,j=int(I.size())-k,a=INF;
    for(int i=int(J.size())-1;i>=k-1;i--){
    	while(j>=0 and I[j]>J[i] and par[I[j]]-par[J[i]]>=k)umin(a,I[j+k-1]-I[j]+I[j]),j--;
    	if(a!=INF)umin(ans,J[i]-J[i-k+1]+1-J[i]+a);
    }
    if(ans==INF)puts("-1");
    else printf("%d\n",ans-3*k);
	return 0;
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |     scanf("%d%d",&n,&k);
      |     ~~~~~^~~~~~~~~~~~~~
ho_t2.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |     scanf("%s",s+1);
      |     ~~~~~^~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 6 ms 1936 KB Output is correct
37 Correct 6 ms 2424 KB Output is correct
38 Correct 7 ms 2444 KB Output is correct
39 Correct 7 ms 2432 KB Output is correct
40 Correct 5 ms 2548 KB Output is correct
41 Correct 5 ms 2532 KB Output is correct
42 Correct 6 ms 2428 KB Output is correct
43 Correct 3 ms 1556 KB Output is correct
44 Correct 4 ms 1896 KB Output is correct
45 Correct 5 ms 2352 KB Output is correct
46 Correct 5 ms 2444 KB Output is correct
47 Correct 5 ms 2344 KB Output is correct
48 Correct 5 ms 2532 KB Output is correct
49 Correct 3 ms 1576 KB Output is correct
50 Correct 5 ms 2532 KB Output is correct
51 Correct 6 ms 2444 KB Output is correct
52 Correct 4 ms 2152 KB Output is correct
53 Correct 5 ms 2532 KB Output is correct
54 Correct 4 ms 2532 KB Output is correct
55 Correct 4 ms 2532 KB Output is correct
56 Correct 4 ms 2532 KB Output is correct