oj.uz

Submission #40048

# Submission time Handle Problem Language Result Execution time Memory
40048 2018-01-25T20:48:42 Z igzi Horses (IOI15_horses) C++14
17 / 100
 73 ms 47600 KB 
#include <bits/stdc++.h>
#include "horses.h"
#define maxN 500005
#define mod 1000000007

using namespace std;

struct segment{
long long a,b;};
segment seg[4*maxN];
vector <long long> x,y;

void build(int n,int l,int d){
if(l==d){
    seg[n].a=x[l];
    seg[n].b=(x[l]*y[l])%mod;
}
else{
    int m=(l+d)/2;
    build(2*n,l,m);
    build(2*n+1,m+1,d);
    seg[n].a=(seg[2*n].a*seg[2*n+1].a)%mod;
    seg[n].b=(max(seg[2*n].b,(seg[2*n+1].b*seg[2*n].a)%mod))%mod;
}
}
void updatex(int n,int l,int d,int p,long long v){
if(l==d){
    x[l]=v;
    seg[n].a=x[l];
    seg[n].b=(x[l]*y[l])%mod;
}
else{
    int m=(l+d)/2;
    if(p<=m) updatex(2*n,l,m,p,v);
    else updatex(2*n+1,m+1,d,p,v);
    seg[n].a=(seg[2*n].a*seg[2*n+1].a)%mod;
    seg[n].b=(max(seg[2*n].b,(seg[2*n+1].b*seg[2*n].a)%mod))%mod;
}
}
void updatey(int n,int l,int d,int p,long long v){
if(l==d){
    y[l]=v;
    seg[n].b=(x[l]*y[l])%mod;
}
else{
    int m=(l+d)/2;
    if(p<=m) updatey(2*n,l,m,p,v);
    else updatey(2*n+1,m+1,d,p,v);
    seg[n].a=(seg[2*n].a*seg[2*n+1].a)%mod;
    seg[n].b=(max(seg[2*n].b,(seg[2*n+1].b*seg[2*n].a)%mod))%mod;
}
}

int init(int n,int a[],int b[]){
int i;
long long ans;
for(i=0;i<n;i++){
    x.push_back(a[i]%mod);
    y.push_back(b[i]%mod);
}
build(1,0,n-1);
ans=seg[1].b%mod;
return (int) ans;
}
int updateX(int pos,int val){
long long ans;
updatex(1,0,x.size()-1,pos,(long long) val%mod);
ans=seg[1].b%mod;
return (int) ans;
}
int updateY(int pos,int val){
long long ans;
updatey(1,0,y.size()-1,pos,(long long) val%mod);
ans=seg[1].b%mod;
return (int) ans;
}

Compilation message

horses.cpp: In function 'int updateX(int, int)':
horses.cpp:67:47: warning: conversion to 'int' from 'std::vector<long long int>::size_type {aka long unsigned int}' may alter its value [-Wconversion]
 updatex(1,0,x.size()-1,pos,(long long) val%mod);
                                               ^
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:73:47: warning: conversion to 'int' from 'std::vector<long long int>::size_type {aka long unsigned int}' may alter its value [-Wconversion]
 updatey(1,0,y.size()-1,pos,(long long) val%mod);
                                               ^

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33276 KB Output is correct
2 Correct 0 ms 33276 KB Output is correct
3 Correct 0 ms 33276 KB Output is correct
4 Correct 0 ms 33276 KB Output is correct
5 Correct 0 ms 33276 KB Output is correct
6 Correct 0 ms 33276 KB Output is correct
7 Correct 0 ms 33276 KB Output is correct
8 Correct 0 ms 33276 KB Output is correct
9 Correct 0 ms 33276 KB Output is correct
10 Correct 0 ms 33276 KB Output is correct
11 Correct 0 ms 33276 KB Output is correct
12 Correct 0 ms 33276 KB Output is correct
13 Correct 0 ms 33276 KB Output is correct
14 Correct 0 ms 33276 KB Output is correct
15 Correct 0 ms 33276 KB Output is correct
16 Correct 0 ms 33276 KB Output is correct
17 Correct 0 ms 33276 KB Output is correct
18 Correct 0 ms 33276 KB Output is correct
19 Correct 0 ms 33276 KB Output is correct
20 Correct 0 ms 33276 KB Output is correct

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33276 KB Output is correct
2 Correct 0 ms 33276 KB Output is correct
3 Correct 0 ms 33276 KB Output is correct
4 Correct 0 ms 33276 KB Output is correct
5 Correct 0 ms 33276 KB Output is correct
6 Correct 0 ms 33276 KB Output is correct
7 Correct 0 ms 33276 KB Output is correct
8 Correct 0 ms 33276 KB Output is correct
9 Correct 0 ms 33276 KB Output is correct
10 Correct 0 ms 33276 KB Output is correct
11 Correct 0 ms 33276 KB Output is correct
12 Correct 0 ms 33276 KB Output is correct
13 Correct 0 ms 33276 KB Output is correct
14 Correct 0 ms 33276 KB Output is correct
15 Correct 0 ms 33276 KB Output is correct
16 Correct 0 ms 33276 KB Output is correct
17 Correct 0 ms 33276 KB Output is correct
18 Correct 0 ms 33276 KB Output is correct
19 Correct 0 ms 33276 KB Output is correct
20 Correct 0 ms 33276 KB Output is correct
21 Incorrect 0 ms 33276 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 73 ms 47600 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33276 KB Output is correct
2 Correct 0 ms 33276 KB Output is correct
3 Correct 0 ms 33276 KB Output is correct
4 Correct 0 ms 33276 KB Output is correct
5 Correct 0 ms 33276 KB Output is correct
6 Correct 0 ms 33276 KB Output is correct
7 Correct 0 ms 33276 KB Output is correct
8 Correct 0 ms 33276 KB Output is correct
9 Correct 0 ms 33276 KB Output is correct
10 Correct 0 ms 33276 KB Output is correct
11 Correct 0 ms 33276 KB Output is correct
12 Correct 0 ms 33276 KB Output is correct
13 Correct 0 ms 33276 KB Output is correct
14 Correct 0 ms 33276 KB Output is correct
15 Correct 0 ms 33276 KB Output is correct
16 Correct 0 ms 33276 KB Output is correct
17 Correct 0 ms 33276 KB Output is correct
18 Correct 0 ms 33276 KB Output is correct
19 Correct 0 ms 33276 KB Output is correct
20 Correct 0 ms 33276 KB Output is correct
21 Incorrect 0 ms 33276 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 33276 KB Output is correct
2 Correct 0 ms 33276 KB Output is correct
3 Correct 0 ms 33276 KB Output is correct
4 Correct 0 ms 33276 KB Output is correct
5 Correct 0 ms 33276 KB Output is correct
6 Correct 0 ms 33276 KB Output is correct
7 Correct 0 ms 33276 KB Output is correct
8 Correct 0 ms 33276 KB Output is correct
9 Correct 0 ms 33276 KB Output is correct
10 Correct 0 ms 33276 KB Output is correct
11 Correct 0 ms 33276 KB Output is correct
12 Correct 0 ms 33276 KB Output is correct
13 Correct 0 ms 33276 KB Output is correct
14 Correct 0 ms 33276 KB Output is correct
15 Correct 0 ms 33276 KB Output is correct
16 Correct 0 ms 33276 KB Output is correct
17 Correct 0 ms 33276 KB Output is correct
18 Correct 0 ms 33276 KB Output is correct
19 Correct 0 ms 33276 KB Output is correct
20 Correct 0 ms 33276 KB Output is correct
21 Incorrect 0 ms 33276 KB Output isn't correct
22 Halted 0 ms 0 KB -