| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 620717 |
2022-08-03T08:31:33 Z |
Hazem |
Horses (IOI15_horses) |
C++14 |
|
98 ms |
25548 KB |
#include <bits/stdc++.h>
#define LL long long
using namespace std;
const int M = 5e5+10;
const int MOD = 1e9+7;
LL add(LL a,LL b){
return (a+b)%MOD;
}
LL mult(LL a,LL b){
return (a*b)%MOD;
}
LL fastpow(LL n,LL k){
LL ret = 1;
while(k){
if(k&1)ret = mult(ret,n);
k /= 2;
n = mult(n,n);
}
return ret;
}
LL divide(LL a,LL b){
return (a*fastpow(b,MOD-2));
}
LL a[M],b[M],n;
LL pr = 1;
LL calc(){
LL idx = max(1ll,n-29),cur = 1;
for(int i=idx+1;i<=n;i++){
cur *= a[i];
if(cur*b[i]>b[idx])
idx = i,cur = 1;
}
cur = 1;
for(int i=max(1ll,n-29);i<=idx;i++)
cur = mult(cur,a[i]);
return mult(mult(cur,pr),b[idx]);
}
int init(int N, int X[], int Y[]) {
n = N;
a[0] = 1;
for(int i=1;i<=n;i++){
a[i] = X[i-1];
b[i] = Y[i-1];
if(i<n-29)
pr = mult(pr,a[i]);
}
return calc();
}
int updateX(int pos, int val) {
if(pos+1<n-29){
pr = divide(pr,a[pos+1]);
pr = mult(pr,val);
}
a[pos+1] = val;
return calc();
}
int updateY(int pos, int val) {
b[pos+1] = val;
return calc();
}
Compilation message
horses.cpp: In function 'long long int calc()':
horses.cpp:40:15: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
40 | for(int i=idx+1;i<=n;i++){
| ~~~^~
horses.cpp:47:15: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
47 | for(int i=max(1ll,n-29);i<=idx;i++)
| ~~~^~~~~~~~~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:64:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
64 | return calc();
| ~~~~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:75:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
75 | return calc();
| ~~~~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:82:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
82 | return calc();
| ~~~~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
224 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
224 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 24 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
35 ms |
13772 KB |
Output is correct |
| 2 |
Incorrect |
98 ms |
25548 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 24 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
356 KB |
Output isn't correct |
| 24 |
Halted |
0 ms |
0 KB |
- |
