oj.uz

Submission #977856

# Submission time Handle Problem Language Result Execution time Memory
977856 2024-05-08T11:55:34 Z sleepntsheep Cake 3 (JOI19_cake3) C
100 / 100
 452 ms 11096 KB 
#include<stdio.h>
#include<time.h>
#include<stdlib.h>

#define N 200000
int n, M, v[N],c[N],o[N],v2[N],vm[N],fw[N],freq[N];
long long fw2[N],z=-1e18;

void add_(int p,int k1,long long k2) { for(;p<N;p|=p+1)fw[p]+=k1,fw2[p]+=k2; }
long long search()
{
    long long val2=0;int val=0,pos=0;
    for(int j=1<<20;j>>=1;)
        if(pos+j<=N&&val+fw[pos+j-1]<=M)pos+=j,val+=fw[pos-1],val2+=fw2[pos-1];
    return val2;
}

int cl=0,cr=-1;
void add(int i) { add_(vm[i],1,v[i]); }
void del(int i) { add_(vm[i],-1,-v[i]); }
void move(int l,int r)
{
    while(cr<r)add(++cr);
    while(cl>l)add(--cl);
    while(cr>r)del(cr--);
    while(cl<l)del(cl++);
}

void map(int i)
{
    int lb=-1,ub=n,x=v[i];
    while(ub-lb>1)
    {
        int mid=lb+(ub-lb)/2;
        if(v2[mid]<x)lb=mid;
        else ub=mid;
    }
    vm[i]=n-ub-1;
}

void sort(int *a,int l,int r)
{
    while(l<r)
    {
        int i=l,j=l,k=r,t,p=a[l+rand()%(r-l)];
        while(j<k)
        {
            int cmp;
            if(a==v2)cmp=a[j]-p;
            else cmp=c[a[j]]-c[p];
            if(cmp<0)
                t=a[i],a[i]=a[j],a[j]=t,++i,++j;
            else if(cmp==0)
                ++j;
            else
                t=a[--k],a[k]=a[j],a[j]=t;
        }
        sort(a,l,i);
        l=k;
    }
}

void dnc(int l,int r,int optl,int optr)
{
    if(l>r) return;
    int m=l+(r-l)/2,opt=-1;
    long long res=-1e18,res2;
    for(int i=optl;i<=optr&&i+M-1<=m;++i)
    {
        move(i,m);
        res2=search()-2*(c[m]-c[i]);
        if(res2>res)res=res2,opt=i;
    }
    if(res>z)z=res;
    dnc(l,m-1,optl,opt);
    dnc(m+1,r,opt,optr);
}

int main()
{
    srand(time(0));
    scanf("%d%d",&n,&M);
    for(int i=0;i<n;++i)scanf("%d%d",v+i,c+i),o[i]=i;
    sort(o,0,n);
    for(int i=0;i<n;++i)v2[i]=v[o[i]],vm[i]=c[o[i]];
    for(int i=0;i<n;++i)c[i]=vm[i],v[i]=v2[i];
    sort(v2,0,n);
    for(int i=0;i<n;++i)
    {
        map(i);
        vm[i]-=freq[vm[i]]++;
        if(vm[i]<0||vm[i]>=n)return 1;
    }
    dnc(M-1,n-1,0,n-1);
    printf("%lld",z);
}

Compilation message

cake3.c: In function 'main':
cake3.c:82:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   82 |     scanf("%d%d",&n,&M);
      |     ^~~~~~~~~~~~~~~~~~~
cake3.c:83:25: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   83 |     for(int i=0;i<n;++i)scanf("%d%d",v+i,c+i),o[i]=i;
      |                         ^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4948 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 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 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 2 ms 4440 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 2 ms 4516 KB Output is correct
27 Correct 1 ms 4604 KB Output is correct
28 Correct 1 ms 4700 KB Output is correct
29 Correct 1 ms 4520 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4520 KB Output is correct
34 Correct 1 ms 4528 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4520 KB Output is correct
37 Correct 1 ms 4460 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4948 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 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 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 2 ms 4440 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 2 ms 4516 KB Output is correct
27 Correct 1 ms 4604 KB Output is correct
28 Correct 1 ms 4700 KB Output is correct
29 Correct 1 ms 4520 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4520 KB Output is correct
34 Correct 1 ms 4528 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4520 KB Output is correct
37 Correct 1 ms 4460 KB Output is correct
38 Correct 3 ms 4440 KB Output is correct
39 Correct 4 ms 4524 KB Output is correct
40 Correct 3 ms 4444 KB Output is correct
41 Correct 3 ms 4444 KB Output is correct
42 Correct 3 ms 4452 KB Output is correct
43 Correct 3 ms 4700 KB Output is correct
44 Correct 3 ms 4444 KB Output is correct
45 Correct 3 ms 4536 KB Output is correct
46 Correct 3 ms 4444 KB Output is correct
47 Correct 3 ms 4444 KB Output is correct
48 Correct 3 ms 4444 KB Output is correct
49 Correct 3 ms 4536 KB Output is correct
50 Correct 3 ms 4444 KB Output is correct
51 Correct 2 ms 4544 KB Output is correct
52 Correct 2 ms 4444 KB Output is correct
53 Correct 2 ms 4444 KB Output is correct
54 Correct 2 ms 4444 KB Output is correct
55 Correct 2 ms 4444 KB Output is correct
56 Correct 2 ms 4444 KB Output is correct
57 Correct 2 ms 4444 KB Output is correct
58 Correct 2 ms 4572 KB Output is correct
59 Correct 2 ms 4444 KB Output is correct
60 Correct 3 ms 4576 KB Output is correct
61 Correct 3 ms 4700 KB Output is correct
62 Correct 2 ms 4444 KB Output is correct
63 Correct 2 ms 4440 KB Output is correct
64 Correct 2 ms 4444 KB Output is correct
65 Correct 3 ms 4444 KB Output is correct
66 Correct 3 ms 4444 KB Output is correct
67 Correct 4 ms 4584 KB Output is correct
68 Correct 3 ms 4444 KB Output is correct
69 Correct 3 ms 4444 KB Output is correct
70 Correct 3 ms 4588 KB Output is correct
71 Correct 2 ms 4444 KB Output is correct
72 Correct 2 ms 4440 KB Output is correct
73 Correct 3 ms 4696 KB Output is correct
74 Correct 2 ms 4444 KB Output is correct

Subtask #3
76.0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4948 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 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 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 2 ms 4440 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 2 ms 4516 KB Output is correct
27 Correct 1 ms 4604 KB Output is correct
28 Correct 1 ms 4700 KB Output is correct
29 Correct 1 ms 4520 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4520 KB Output is correct
34 Correct 1 ms 4528 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4520 KB Output is correct
37 Correct 1 ms 4460 KB Output is correct
38 Correct 3 ms 4440 KB Output is correct
39 Correct 4 ms 4524 KB Output is correct
40 Correct 3 ms 4444 KB Output is correct
41 Correct 3 ms 4444 KB Output is correct
42 Correct 3 ms 4452 KB Output is correct
43 Correct 3 ms 4700 KB Output is correct
44 Correct 3 ms 4444 KB Output is correct
45 Correct 3 ms 4536 KB Output is correct
46 Correct 3 ms 4444 KB Output is correct
47 Correct 3 ms 4444 KB Output is correct
48 Correct 3 ms 4444 KB Output is correct
49 Correct 3 ms 4536 KB Output is correct
50 Correct 3 ms 4444 KB Output is correct
51 Correct 2 ms 4544 KB Output is correct
52 Correct 2 ms 4444 KB Output is correct
53 Correct 2 ms 4444 KB Output is correct
54 Correct 2 ms 4444 KB Output is correct
55 Correct 2 ms 4444 KB Output is correct
56 Correct 2 ms 4444 KB Output is correct
57 Correct 2 ms 4444 KB Output is correct
58 Correct 2 ms 4572 KB Output is correct
59 Correct 2 ms 4444 KB Output is correct
60 Correct 3 ms 4576 KB Output is correct
61 Correct 3 ms 4700 KB Output is correct
62 Correct 2 ms 4444 KB Output is correct
63 Correct 2 ms 4440 KB Output is correct
64 Correct 2 ms 4444 KB Output is correct
65 Correct 3 ms 4444 KB Output is correct
66 Correct 3 ms 4444 KB Output is correct
67 Correct 4 ms 4584 KB Output is correct
68 Correct 3 ms 4444 KB Output is correct
69 Correct 3 ms 4444 KB Output is correct
70 Correct 3 ms 4588 KB Output is correct
71 Correct 2 ms 4444 KB Output is correct
72 Correct 2 ms 4440 KB Output is correct
73 Correct 3 ms 4696 KB Output is correct
74 Correct 2 ms 4444 KB Output is correct
75 Correct 368 ms 10784 KB Output is correct
76 Correct 424 ms 10728 KB Output is correct
77 Correct 328 ms 10832 KB Output is correct
78 Correct 370 ms 10984 KB Output is correct
79 Correct 129 ms 10936 KB Output is correct
80 Correct 134 ms 10832 KB Output is correct
81 Correct 358 ms 10168 KB Output is correct
82 Correct 439 ms 10260 KB Output is correct
83 Correct 446 ms 10408 KB Output is correct
84 Correct 452 ms 10276 KB Output is correct
85 Correct 366 ms 10108 KB Output is correct
86 Correct 225 ms 9808 KB Output is correct
87 Correct 242 ms 9944 KB Output is correct
88 Correct 323 ms 9936 KB Output is correct
89 Correct 332 ms 10172 KB Output is correct
90 Correct 247 ms 10392 KB Output is correct
91 Correct 177 ms 10304 KB Output is correct
92 Correct 185 ms 9700 KB Output is correct
93 Correct 210 ms 10152 KB Output is correct
94 Correct 160 ms 10320 KB Output is correct
95 Correct 212 ms 10324 KB Output is correct
96 Correct 208 ms 10092 KB Output is correct
97 Correct 170 ms 10324 KB Output is correct
98 Correct 185 ms 10168 KB Output is correct
99 Correct 178 ms 10192 KB Output is correct
100 Correct 159 ms 9884 KB Output is correct
101 Correct 144 ms 9788 KB Output is correct
102 Correct 332 ms 10016 KB Output is correct
103 Correct 322 ms 9696 KB Output is correct
104 Correct 336 ms 10352 KB Output is correct
105 Correct 298 ms 9944 KB Output is correct
106 Correct 246 ms 10312 KB Output is correct
107 Correct 234 ms 10068 KB Output is correct
108 Correct 375 ms 10660 KB Output is correct
109 Correct 279 ms 11092 KB Output is correct
110 Correct 146 ms 9300 KB Output is correct
111 Correct 216 ms 9320 KB Output is correct
112 Correct 326 ms 9196 KB Output is correct
113 Correct 131 ms 11096 KB Output is correct