Alien Sunset

input/code.cpp: In function 'int main()':
input/code.cpp:17:76: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
       if((ct<=r[i]&&t[i]>=r[i]) || (ct>=t[i]&&r[i]<=t[i]) || ct%h[i]<=r[i] && ct%h[i]>=t[i]) {
                                                                            ^

#include <bits/stdc++.h>
using namespace std;

int h[21], r[21], t[21];

int main() {
  int n;
  cin >> n;
  int ld = 0;
  for(int i=0;i<n;i++) {
    cin >> h[i] >> r[i] >> t[i];
    ld = max(ld, h[i]);
  }
  for(int ct=0;ct<ld*1825;ct++) {
    int foo=0;
    for(int i=0;i<n;i++) {
      if((ct<=r[i]&&t[i]>=r[i]) || (ct>=t[i]&&r[i]<=t[i]) || ct%h[i]<=r[i] && ct%h[i]>=t[i]) {
        //cout << "at t="<<ct<<" planet " << i << " is in darkness" << endl;
        foo++;
      } else {
        //cout << "at t="<<ct<<" planet " << i << " is in daytime" << endl;
      }
    }
    if(foo == n) {
      cout << ct << endl;
      return 0;
    }
  }
  cout << "impossible" << endl;
  return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: ACCEPTED

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: ACCEPTED

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: ACCEPTED