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답안 #710955

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
710955 2023-03-16T06:15:33 Z ToroTN 말 (IOI15_horses) C++14
100 / 100
 958 ms 50296 KB 
#include<bits/stdc++.h>
using namespace std;
#include "horses.h"
//#include "grader.cpp"
#define ll long long
ll MOD=1000000007;
ll n,x[500005],y[500005],mul[2000005],ans[2000005];
void build_mul(ll tree,ll st,ll ed)
{
    ll md=(st+ed)/2;
    if(st==ed)
    {
        mul[tree]=x[st];
        ans[tree]=x[st];
        return;
    }
    build_mul(2*tree,st,md);
    build_mul(2*tree+1,md+1,ed);
    ans[tree]=(ans[2*tree]*ans[2*tree+1])%MOD;
    if(mul[2*tree]==-1||mul[2*tree+1]==-1)
    {
        mul[tree]=-1;
    }else if(mul[2*tree]*mul[2*tree+1]>1e9)
    {
        mul[tree]=-1;
    }else
    {
        mul[tree]=mul[2*tree]*mul[2*tree+1];
    }
}
void update_mul(ll tree,ll st,ll ed,ll idx,ll val)
{
    ll md=(st+ed)/2;
    if(st==ed)
    {
        mul[tree]=val;
        ans[tree]=val;
        return;
    }
    if(idx<=md)
    {
        update_mul(2*tree,st,md,idx,val);
    }else
    {
        update_mul(2*tree+1,md+1,ed,idx,val);
    }
    ans[tree]=(ans[2*tree]*ans[2*tree+1])%MOD;
    if(mul[2*tree]==-1||mul[2*tree+1]==-1)
    {
        mul[tree]=-1;
    }else if(mul[2*tree]*mul[2*tree+1]>1e9)
    {
        mul[tree]=-1;
    }else
    {
        mul[tree]=mul[2*tree]*mul[2*tree+1];
    }
}
ll query_mul(ll tree,ll st,ll ed,ll l,ll r)
{
    ll md=(st+ed)/2;
    if(st>r||ed<l)return 1;
    if(st>=l&&ed<=r)return mul[tree];
    ll lft=query_mul(2*tree,st,md,l,r),rht=query_mul(2*tree+1,md+1,ed,l,r);
    if(lft==-1||rht==-1)return -1;
    if(lft*rht>1e9)return -1;
    return lft*rht;
}
ll query_ans(ll tree,ll st,ll ed,ll l,ll r)
{
    ll md=(st+ed)/2;
    if(st>r||ed<l)return 1;
    if(st>=l&&ed<=r)return ans[tree];
    return (query_ans(2*tree,st,md,l,r)*query_ans(2*tree+1,md+1,ed,l,r))%MOD;
}
ll seg[2000005];
void build(ll tree,ll st,ll ed)
{
    ll md=(st+ed)/2;
    if(st==ed)
    {
        seg[tree]=st;
        return;
    }
    build(2*tree,st,md);
    build(2*tree+1,md+1,ed);
    ll l_idx=seg[2*tree],r_idx=seg[2*tree+1];
    ll rng=query_mul(1,1,n,l_idx+1,r_idx);
    if(rng!=-1)
    {
        if(rng*y[r_idx]>1e9)
        {
            rng=-1;
        }else
        {
            rng*=y[r_idx];
        }
    }
    if(rng==-1)
    {
        seg[tree]=r_idx;
    }else
    {
        if(rng>y[l_idx])
        {
            seg[tree]=r_idx;
        }else
        {
            seg[tree]=l_idx;
        }
    }
}
void update(ll tree,ll st,ll ed,ll idx)
{
    ll md=(st+ed)/2;
    if(st==ed)
    {
        seg[tree]=idx;
        return;
    }
    if(idx<=md)
    {
        update(2*tree,st,md,idx);
    }else
    {
        update(2*tree+1,md+1,ed,idx);
    }
    ll l_idx=seg[2*tree],r_idx=seg[2*tree+1];
    ll rng=query_mul(1,1,n,l_idx+1,r_idx);
    if(rng!=-1)
    {
        if(rng*y[r_idx]>1e9)
        {
            rng=-1;
        }else
        {
            rng*=y[r_idx];
        }
    }
    if(rng==-1)
    {
        seg[tree]=r_idx;
    }else
    {
        if(rng>y[l_idx])
        {
            seg[tree]=r_idx;
        }else
        {
            seg[tree]=l_idx;
        }
    }
}
void debug(ll tree,ll st,ll ed)
{
    ll md=(st+ed)/2;
    if(st==ed)
    {
        printf("%lld %lld %lld\n",st,ed,mul[tree]);
        return;
    }
    debug(2*tree,st,md);
    debug(2*tree+1,md+1,ed);
    printf("%lld %lld %lld\n",st,ed,mul[tree]);
}
void debug_seg(ll tree,ll st,ll ed)
{
    ll md=(st+ed)/2;
    if(st==ed)
    {
        printf("%lld %lld %lld\n",st,ed,seg[tree]);
        return;
    }
    debug_seg(2*tree,st,md);
    debug_seg(2*tree+1,md+1,ed);
    printf("%lld %lld %lld\n",st,ed,seg[tree]);
}
int init(int N, int X[], int Y[]) 
{
    n=N;for(int i=1;i<=n;i++)x[i]=X[i-1],y[i]=Y[i-1];
    /*for(int i=1;i<=n;i++)
    {
        printf("%lld ",ans[i]);
    }
    printf("\n");*/
    build_mul(1,1,n);
    build(1,1,n);
    //debug_seg(1,1,n);
    //debug(1,1,n);
    //printf("%lld\n",mul[1]);
    return (query_ans(1,1,n,1,seg[1])*y[seg[1]])%MOD;
}
int updateX(int pos, int val) 
{	
	++pos;
    //printf("krit3379 %lld %lld\n",pos,val);
    x[pos]=val;
    update_mul(1,1,n,pos,val);
    update(1,1,n,pos);
    //debug(1,1,n);
    //debug_seg(1,1,n);
    return (query_ans(1,1,n,1,seg[1])*y[seg[1]])%MOD;
}

int updateY(int pos, int val) 
{
	++pos;
    //printf("Jomnoi %lld %lld\n",pos,val);
    y[pos]=val;
    update(1,1,n,pos);
    //debug_seg(1,1,n);
    return (query_ans(1,1,n,1,seg[1])*y[seg[1]])%MOD;
}

Compilation message

horses.cpp: In function 'void build_mul(long long int, long long int, long long int)':
horses.cpp:23:25: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
   23 |     }else if(mul[2*tree]*mul[2*tree+1]>1e9)
      |              ~~~~~~~~~~~^~~~~~~~~~~~~~
horses.cpp: In function 'void update_mul(long long int, long long int, long long int, long long int, long long int)':
horses.cpp:51:25: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
   51 |     }else if(mul[2*tree]*mul[2*tree+1]>1e9)
      |              ~~~~~~~~~~~^~~~~~~~~~~~~~
horses.cpp: In function 'long long int query_mul(long long int, long long int, long long int, long long int, long long int)':
horses.cpp:66:11: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
   66 |     if(lft*rht>1e9)return -1;
      |        ~~~^~~~
horses.cpp: In function 'void build(long long int, long long int, long long int)':
horses.cpp:91:15: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
   91 |         if(rng*y[r_idx]>1e9)
      |            ~~~^~~~~~~~~
horses.cpp: In function 'void update(long long int, long long int, long long int, long long int)':
horses.cpp:132:15: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
  132 |         if(rng*y[r_idx]>1e9)
      |            ~~~^~~~~~~~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:191:49: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  191 |     return (query_ans(1,1,n,1,seg[1])*y[seg[1]])%MOD;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:202:49: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  202 |     return (query_ans(1,1,n,1,seg[1])*y[seg[1]])%MOD;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:212:49: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  212 |     return (query_ans(1,1,n,1,seg[1])*y[seg[1]])%MOD;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 304 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 308 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 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 308 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 224 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 340 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 308 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 340 KB Output is correct
10 Correct 1 ms 340 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 304 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 3 ms 316 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 3 ms 432 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 3 ms 340 KB Output is correct
32 Correct 3 ms 312 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 465 ms 40220 KB Output is correct
2 Correct 445 ms 50296 KB Output is correct
3 Correct 601 ms 41432 KB Output is correct
4 Correct 582 ms 45292 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 312 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 304 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 304 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 308 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 304 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 308 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 308 KB Output is correct
22 Correct 1 ms 308 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 2 ms 452 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 3 ms 340 KB Output is correct
28 Correct 3 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 3 ms 468 KB Output is correct
31 Correct 3 ms 340 KB Output is correct
32 Correct 3 ms 340 KB Output is correct
33 Correct 247 ms 40648 KB Output is correct
34 Correct 238 ms 40664 KB Output is correct
35 Correct 195 ms 47556 KB Output is correct
36 Correct 203 ms 47532 KB Output is correct
37 Correct 223 ms 38872 KB Output is correct
38 Correct 175 ms 39760 KB Output is correct
39 Correct 197 ms 38684 KB Output is correct
40 Correct 209 ms 42648 KB Output is correct
41 Correct 221 ms 38780 KB Output is correct
42 Correct 221 ms 38788 KB Output is correct
43 Correct 182 ms 42984 KB Output is correct
44 Correct 171 ms 43056 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 304 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 308 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 304 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 1 ms 304 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 304 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 4 ms 340 KB Output is correct
24 Correct 3 ms 316 KB Output is correct
25 Correct 3 ms 448 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 3 ms 340 KB Output is correct
28 Correct 3 ms 416 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 3 ms 340 KB Output is correct
31 Correct 3 ms 328 KB Output is correct
32 Correct 4 ms 316 KB Output is correct
33 Correct 615 ms 41464 KB Output is correct
34 Correct 480 ms 50192 KB Output is correct
35 Correct 601 ms 41388 KB Output is correct
36 Correct 637 ms 45196 KB Output is correct
37 Correct 227 ms 40628 KB Output is correct
38 Correct 226 ms 40668 KB Output is correct
39 Correct 194 ms 47540 KB Output is correct
40 Correct 182 ms 47480 KB Output is correct
41 Correct 232 ms 38996 KB Output is correct
42 Correct 201 ms 39780 KB Output is correct
43 Correct 228 ms 38632 KB Output is correct
44 Correct 194 ms 42652 KB Output is correct
45 Correct 194 ms 38728 KB Output is correct
46 Correct 207 ms 38800 KB Output is correct
47 Correct 142 ms 42984 KB Output is correct
48 Correct 150 ms 43056 KB Output is correct
49 Correct 863 ms 42796 KB Output is correct
50 Correct 775 ms 42656 KB Output is correct
51 Correct 498 ms 49392 KB Output is correct
52 Correct 357 ms 48984 KB Output is correct
53 Correct 958 ms 41128 KB Output is correct
54 Correct 500 ms 41556 KB Output is correct
55 Correct 733 ms 39952 KB Output is correct
56 Correct 509 ms 44500 KB Output is correct
57 Correct 657 ms 40488 KB Output is correct
58 Correct 750 ms 40916 KB Output is correct
59 Correct 172 ms 42956 KB Output is correct