# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
202434 |
2020-02-16T05:25:43 Z |
anonymous |
Horses (IOI15_horses) |
C++14 |
|
198 ms |
66680 KB |
#include "horses.h"
#include<iostream>
#define MOD (1000000007LL)
#define LL long long
#define INF (1LL<<30)
#define MAXN 500005
using namespace std;
LL n, x[MAXN], y[MAXN];
class Segtree {
LL ST[MAXN*4][5]; //mod product, actual (or inf), opt product, opt, prod of stuff to right of opt
public:
void pushup(int cur) {
ST[cur][0]=(ST[2*cur][0]*ST[2*cur+1][0])%MOD;
ST[cur][1]=min(ST[2*cur][1]*ST[2*cur+1][1], INF);
if (ST[2*cur][4] == INF || y[ST[2*cur][3]] <= ST[2*cur+1][2]*ST[2*cur][4]) {
ST[cur][2] = min(ST[2*cur+1][2]*ST[2*cur][1], INF);
ST[cur][3] = ST[2*cur+1][3];
ST[cur][4] = ST[2*cur+1][4];
} else {
ST[cur][2] = ST[2*cur][2];
ST[cur][3] = ST[2*cur][3];
ST[cur][4] = min(ST[2*cur][4]*ST[2*cur+1][1], INF);
}
}
void build(int l, int r, int cur) {
if (l == r) {
ST[cur][0] = x[l];
ST[cur][1] = x[l];
ST[cur][2] = min(x[l]*y[l], INF);
ST[cur][3] = l;
ST[cur][4] = 1;
} else {
int mid=(l+r)>>1;
build(l, mid, 2*cur);
build(mid+1, r, 2*cur+1);
pushup(cur);
}
}
void upd(int ind, int l, int r, int cur) {
if (l > ind || r < ind) {return;}
if (l == r) {
ST[cur][0] = x[l];
ST[cur][1] = x[l];
ST[cur][2] = min(x[l]*y[l], INF);
ST[cur][3] = l;
} else {
int mid=(l+r)>>1;
upd(ind, l, mid, 2*cur);
upd(ind, mid+1, r, 2*cur+1);
pushup(cur);
}
}
LL ask(int ind, int l, int r, int cur) { //ask for prefix mod product
if (ind < l) {return(1);}
if (r <= ind) {return(ST[cur][0]);}
else {
int mid=(l+r)>>1;
return((ask(ind, l, mid, 2*cur)*ask(ind, mid+1, r, 2*cur+1))%MOD);
}
}
LL opt() {return(ST[1][3]);}
} ST;
int init(int N, int X[], int Y[]) {
n=N;
for (int i=0; i<N; i++) {
x[i] = X[i];
y[i] = Y[i];
}
ST.build(0, N-1, 1);
LL p = ST.opt(), prod = ST.ask(p, 0, N-1, 1);
LL ans = (prod * y[p])%MOD;
return( (int) ans);
}
int updateX(int pos, int val) {
x[pos]=val;
ST.upd(pos, 0, n-1, 1);
LL p = ST.opt(), prod = ST.ask(p, 0, n-1, 1);
LL ans = (prod * y[p])%MOD;
return( (int) ans);
}
int updateY(int pos, int val) {
y[pos]=val;
ST.upd(pos, 0, n-1, 1);
LL p = ST.opt(), prod = ST.ask(p, 0, n-1, 1);
LL ans = (prod * y[p])%MOD;
return( (int) ans);
}
Compilation message
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:71:45: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
LL p = ST.opt(), prod = ST.ask(p, 0, N-1, 1);
^
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:78:18: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
ST.upd(pos, 0, n-1, 1);
~^~
horses.cpp:79:45: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
LL p = ST.opt(), prod = ST.ask(p, 0, n-1, 1);
^
horses.cpp:79:40: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
LL p = ST.opt(), prod = ST.ask(p, 0, n-1, 1);
~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:86:18: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
ST.upd(pos, 0, n-1, 1);
~^~
horses.cpp:87:45: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
LL p = ST.opt(), prod = ST.ask(p, 0, n-1, 1);
^
horses.cpp:87:40: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
LL p = ST.opt(), prod = ST.ask(p, 0, n-1, 1);
~^~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
380 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
248 KB |
Output is correct |
10 |
Correct |
5 ms |
380 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
5 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
5 ms |
376 KB |
Output is correct |
19 |
Correct |
5 ms |
376 KB |
Output is correct |
20 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
504 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
5 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
5 ms |
376 KB |
Output is correct |
19 |
Correct |
5 ms |
376 KB |
Output is correct |
20 |
Correct |
5 ms |
376 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
376 KB |
Output is correct |
23 |
Correct |
6 ms |
504 KB |
Output is correct |
24 |
Correct |
6 ms |
504 KB |
Output is correct |
25 |
Correct |
5 ms |
504 KB |
Output is correct |
26 |
Correct |
6 ms |
504 KB |
Output is correct |
27 |
Correct |
5 ms |
504 KB |
Output is correct |
28 |
Correct |
5 ms |
504 KB |
Output is correct |
29 |
Correct |
5 ms |
376 KB |
Output is correct |
30 |
Correct |
5 ms |
504 KB |
Output is correct |
31 |
Correct |
5 ms |
504 KB |
Output is correct |
32 |
Correct |
5 ms |
504 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
101 ms |
55672 KB |
Output is correct |
2 |
Correct |
198 ms |
66680 KB |
Output is correct |
3 |
Correct |
163 ms |
57952 KB |
Output is correct |
4 |
Correct |
179 ms |
61816 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
400 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
5 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
6 ms |
376 KB |
Output is correct |
19 |
Correct |
5 ms |
376 KB |
Output is correct |
20 |
Correct |
0 ms |
376 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
376 KB |
Output is correct |
23 |
Correct |
5 ms |
504 KB |
Output is correct |
24 |
Correct |
6 ms |
632 KB |
Output is correct |
25 |
Correct |
5 ms |
504 KB |
Output is correct |
26 |
Correct |
5 ms |
504 KB |
Output is correct |
27 |
Correct |
5 ms |
504 KB |
Output is correct |
28 |
Correct |
5 ms |
504 KB |
Output is correct |
29 |
Correct |
5 ms |
504 KB |
Output is correct |
30 |
Correct |
5 ms |
504 KB |
Output is correct |
31 |
Correct |
5 ms |
512 KB |
Output is correct |
32 |
Correct |
5 ms |
504 KB |
Output is correct |
33 |
Correct |
72 ms |
57244 KB |
Output is correct |
34 |
Correct |
71 ms |
57220 KB |
Output is correct |
35 |
Correct |
96 ms |
64248 KB |
Output is correct |
36 |
Correct |
93 ms |
63992 KB |
Output is correct |
37 |
Correct |
56 ms |
55288 KB |
Output is correct |
38 |
Correct |
58 ms |
56184 KB |
Output is correct |
39 |
Correct |
49 ms |
55160 KB |
Output is correct |
40 |
Correct |
68 ms |
59128 KB |
Output is correct |
41 |
Correct |
50 ms |
55288 KB |
Output is correct |
42 |
Correct |
51 ms |
55288 KB |
Output is correct |
43 |
Correct |
66 ms |
59512 KB |
Output is correct |
44 |
Correct |
67 ms |
59512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
5 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
5 ms |
376 KB |
Output is correct |
19 |
Correct |
5 ms |
376 KB |
Output is correct |
20 |
Correct |
5 ms |
376 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
376 KB |
Output is correct |
23 |
Correct |
5 ms |
504 KB |
Output is correct |
24 |
Correct |
5 ms |
508 KB |
Output is correct |
25 |
Correct |
6 ms |
504 KB |
Output is correct |
26 |
Correct |
6 ms |
636 KB |
Output is correct |
27 |
Correct |
5 ms |
504 KB |
Output is correct |
28 |
Correct |
5 ms |
504 KB |
Output is correct |
29 |
Correct |
5 ms |
504 KB |
Output is correct |
30 |
Correct |
5 ms |
504 KB |
Output is correct |
31 |
Correct |
5 ms |
504 KB |
Output is correct |
32 |
Correct |
5 ms |
504 KB |
Output is correct |
33 |
Correct |
101 ms |
57976 KB |
Output is correct |
34 |
Correct |
196 ms |
66680 KB |
Output is correct |
35 |
Correct |
145 ms |
57848 KB |
Output is correct |
36 |
Correct |
165 ms |
61688 KB |
Output is correct |
37 |
Correct |
69 ms |
57080 KB |
Output is correct |
38 |
Correct |
67 ms |
57208 KB |
Output is correct |
39 |
Correct |
94 ms |
64120 KB |
Output is correct |
40 |
Correct |
92 ms |
64120 KB |
Output is correct |
41 |
Correct |
54 ms |
55288 KB |
Output is correct |
42 |
Correct |
58 ms |
56184 KB |
Output is correct |
43 |
Correct |
47 ms |
55160 KB |
Output is correct |
44 |
Correct |
69 ms |
59128 KB |
Output is correct |
45 |
Correct |
48 ms |
55288 KB |
Output is correct |
46 |
Correct |
50 ms |
55336 KB |
Output is correct |
47 |
Correct |
65 ms |
59488 KB |
Output is correct |
48 |
Correct |
65 ms |
59512 KB |
Output is correct |
49 |
Correct |
171 ms |
59128 KB |
Output is correct |
50 |
Correct |
155 ms |
59128 KB |
Output is correct |
51 |
Correct |
145 ms |
65912 KB |
Output is correct |
52 |
Correct |
124 ms |
65400 KB |
Output is correct |
53 |
Correct |
167 ms |
57592 KB |
Output is correct |
54 |
Correct |
110 ms |
57976 KB |
Output is correct |
55 |
Correct |
89 ms |
56312 KB |
Output is correct |
56 |
Correct |
104 ms |
61020 KB |
Output is correct |
57 |
Correct |
96 ms |
56824 KB |
Output is correct |
58 |
Correct |
103 ms |
57336 KB |
Output is correct |
59 |
Correct |
67 ms |
59512 KB |
Output is correct |