답안 #438876

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
438876	2021-06-28T21:23:05 Z	Snowfall	JJOOII 2 (JOI20_ho_t2)	C++14	100 / 100	35 ms	3040 KB

ho_t2

#include<bits/stdc++.h>
using namespace std;
char arr[200005];
int a[1000];
int qs[3][200005];
main()
{
	int t,p;
    a['O']=1;
    a['I']=2;
    scanf("%d%d",&t,&p);
    scanf("%s",&arr[1]);
    for(int i = 1;i <= t;i++)
    {
        qs[a[arr[i]]][i]++;
        // printf("%d\n",arr[i]);
        for(int j = 0;j < 3;j++)
        qs[j][i]+=qs[j][i-1];
    }
    int mn=1e9;
    for(int i = 1;i <= t;i++)
    {
        int ck=0;
        int pv=i;
        int sm=0;
        for(int j = 0;j < 3 && ck==j;j++)
        {
            int st=pv,ed=t;
            int tmn=1e9;
            while(st<=ed)
            {
                int md=(st+ed)/2;
                // printf("%d %d<--\n",qs[j][md],qs[j][pv-1]);
                if(qs[j][md]-qs[j][pv-1]>=p)
                {
                    ed=md-1;
                    tmn=min(tmn,md);
                }
                else
                {
                    st=md+1;
                }
            }
            // printf("d %d %d %d\n",j,tmn,pv-1);
            if(tmn==1e9)
            break;
            if(qs[j][tmn]-qs[j][pv-1]==p)
            {
                sm+=tmn-pv+1-p;
                ck++;
                pv=tmn+1;
            }
            // printf("%d %d\n",pv,sm);
        }
        if(ck==3)
        mn=min(mn,sm);
    }
    if(mn!=1e9)
    printf("%d",mn);
    else
    printf("-1");
}

Compilation message

ho_t2.cpp:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 | main()
      | ^~~~
ho_t2.cpp: In function 'int main()':
ho_t2.cpp:15:19: warning: array subscript has type 'char' [-Wchar-subscripts]
   15 |         qs[a[arr[i]]][i]++;
      |              ~~~~~^
ho_t2.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%d%d",&t,&p);
      |     ~~~~~^~~~~~~~~~~~~~
ho_t2.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf("%s",&arr[1]);
      |     ~~~~~^~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	304 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	304 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	356 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	304 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	300 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	280 KB	Output is correct
35	Correct	1 ms	332 KB	Output is correct

Subtask #3
87.0 / 87.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	304 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	356 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	304 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	300 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	280 KB	Output is correct
35	Correct	1 ms	332 KB	Output is correct
36	Correct	29 ms	2764 KB	Output is correct
37	Correct	31 ms	3020 KB	Output is correct
38	Correct	31 ms	3028 KB	Output is correct
39	Correct	31 ms	3020 KB	Output is correct
40	Correct	24 ms	3020 KB	Output is correct
41	Correct	30 ms	3032 KB	Output is correct
42	Correct	35 ms	3020 KB	Output is correct
43	Correct	12 ms	2020 KB	Output is correct
44	Correct	17 ms	2364 KB	Output is correct
45	Correct	20 ms	2996 KB	Output is correct
46	Correct	20 ms	3020 KB	Output is correct
47	Correct	20 ms	3032 KB	Output is correct
48	Correct	19 ms	3020 KB	Output is correct
49	Correct	13 ms	2124 KB	Output is correct
50	Correct	20 ms	3020 KB	Output is correct
51	Correct	20 ms	3020 KB	Output is correct
52	Correct	10 ms	2892 KB	Output is correct
53	Correct	11 ms	3020 KB	Output is correct
54	Correct	16 ms	3040 KB	Output is correct
55	Correct	13 ms	3020 KB	Output is correct
56	Correct	9 ms	3036 KB	Output is correct

답안 #438876

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 12.0 / 12.0

Subtask #3 87.0 / 87.0

Subtask #1
1.0 / 1.0

Subtask #2
12.0 / 12.0

Subtask #3
87.0 / 87.0