Submission #672337

#	Time	Username	Problem	Language	Result	Execution time	Memory
672337		Trisanu_Das	Horses (IOI15_horses)	C++17	Compilation error	0 ms	0 KiB

horses

#include "horses.h"
#include <bits/stdc++.h>
#define mod 1000000007
using namespace std;
typedef long long ll;
 
int n;

int node{
  ll v, x, y; double dx, dy, dv;
}t[4 * 500005];

node merge(node a, node b){
  node res;
  b.dx += a.dx, b.dv += a.dx;
  if (a.dv > b.dv) res.v = a.v, res.dv = a.dv;
  else res.v = a.x * b.v % mod, res.dv = b.dv;
  res.x = a.x * b.x % mod;
  res.dx = b.dx;
  return res;
}


node upd(int i, int l, int r, int ps, ll vx, ll vy){
  if (l > ps || r < ps) return t[x];
  if (l == r && l == ps) {
		node& nd = t[x];
		if (vx) nd.dx = log(vx), nd.x = vx;
		if (vy) nd.dy = log(vy), nd.y = vy;
		nd.v = nd.x * nd.y % mod, nd.dv = nd.dx + nd.dy;
		return nd;
	}
	int m = (l + r) / 2;
	return t[i] = merge(update(i * 2, l, mid, ps, vx, vy), update(i * 2 + 1, mid + 1, r, ps, vx, vy));
}
 
int init(int N, int X[], int Y[]) {
	n = N;
	for (int i = 0; i < N; i++) update(1, 0, n - 1, i, X[i], Y[i]);
	return t[1].v;
}
 
int updateX(int pos, int val) {	
	update(1, 0, n - 1, pos, val, 0);
	return t[1].v;
}
 
int updateY(int pos, int val) {
	update(1, 0, n - 1, pos, 0, val);
	return t[1].v;
}

Compilation message (stderr)

horses.cpp:10:6: error: expected primary-expression before 'v'
   10 |   ll v, x, y; double dx, dy, dv;
      |      ^
horses.cpp:10:6: error: expected '}' before 'v'
horses.cpp:9:9: note: to match this '{'
    9 | int node{
      |         ^
horses.cpp:11:1: error: expected declaration before '}' token
   11 | }t[4 * 500005];
      | ^
horses.cpp:11:2: error: 't' does not name a type
   11 | }t[4 * 500005];
      |  ^
horses.cpp:13:1: error: 'node' does not name a type
   13 | node merge(node a, node b){
      | ^~~~
horses.cpp:24:1: error: 'node' does not name a type
   24 | node upd(int i, int l, int r, int ps, ll vx, ll vy){
      | ^~~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:39:30: error: 'update' was not declared in this scope; did you mean 'updateY'?
   39 |  for (int i = 0; i < N; i++) update(1, 0, n - 1, i, X[i], Y[i]);
      |                              ^~~~~~
      |                              updateY
horses.cpp:40:9: error: 't' was not declared in this scope
   40 |  return t[1].v;
      |         ^
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:44:2: error: 'update' was not declared in this scope; did you mean 'updateY'?
   44 |  update(1, 0, n - 1, pos, val, 0);
      |  ^~~~~~
      |  updateY
horses.cpp:45:9: error: 't' was not declared in this scope
   45 |  return t[1].v;
      |         ^
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:49:2: error: 'update' was not declared in this scope; did you mean 'updateY'?
   49 |  update(1, 0, n - 1, pos, 0, val);
      |  ^~~~~~
      |  updateY
horses.cpp:50:9: error: 't' was not declared in this scope
   50 |  return t[1].v;
      |         ^