#include <bits/stdc++.h>
using namespace std;
#define scd(t) scanf("%d", &t)
#define scld(t) scanf("%ld", &t)
#define sclld(t) scanf("%lld", &t)
#define scc(t) scanf("%c", &t)
#define scs(t) scanf("%s", t)
#define scf(t) scanf("%f", &t)
#define sclf(t) scanf("%lf", &t)
#define forr(i, j, k) for (int i = j; i < k; i++)
#define frange(i, j) forr(i, 0, j)
#define all(cont) cont.begin(), cont.end()
#define mp make_pair
#define pb push_back
#define f first
#define s second
typedef long int li;
typedef unsigned long int uli;
typedef long long int lli;
typedef unsigned long long int ulli;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<lli> vll;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<vi> vvi;
typedef map<int, int> mpii;
typedef set<int> seti;
typedef multiset<int> mseti;
typedef long double ld;
void usaco()
{
freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
// freopen("problem.out", "w", stdout);
}
vii vec;
lli tot = 0;
lli dfs(int x) {
lli l, r;
if(vec[x].f > 0) {
l = dfs(vec[x].f);
}
else l = abs(vec[x].f);
if(vec[x].s > 0) {
r = dfs(vec[x].s);
}
else r = abs(vec[x].s);
tot += max(r, l) - min(r, l);
return 2*max(r, l);
}
int main() {
// usaco();
int n;
scd(n);
vec = vii(n+1);
forr(i, 1, n+1) {
int l, r;
scd(l);
scd(r);
vec[i] = mp(l, r);
if(l < 0) tot += -l;
if(r < 0) tot += -r;
}
dfs(1);
string out;
while(tot) {
if(tot % 2 == 1) {
out += '1';
}
else out += '0';
tot /= 2;
}
reverse(all(out));
bool one = false;
for(auto e : out) {
if(e == '1') one = true;
if(one) cout << e;
}
}
Compilation message
poklon.cpp: In function 'void usaco()':
poklon.cpp:37:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
37 | freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
poklon.cpp: In function 'int main()':
poklon.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
poklon.cpp:62:5: note: in expansion of macro 'scd'
62 | scd(n);
| ^~~
poklon.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
poklon.cpp:67:9: note: in expansion of macro 'scd'
67 | scd(l);
| ^~~
poklon.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
poklon.cpp:68:9: note: in expansion of macro 'scd'
68 | scd(r);
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 10 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 11 |
Incorrect |
4 ms |
604 KB |
Output isn't correct |
| 12 |
Incorrect |
3 ms |
604 KB |
Output isn't correct |
| 13 |
Incorrect |
10 ms |
2392 KB |
Output isn't correct |
| 14 |
Incorrect |
20 ms |
4444 KB |
Output isn't correct |
| 15 |
Incorrect |
19 ms |
2652 KB |
Output isn't correct |
| 16 |
Incorrect |
67 ms |
12656 KB |
Output isn't correct |
| 17 |
Incorrect |
163 ms |
28240 KB |
Output isn't correct |
| 18 |
Incorrect |
162 ms |
29780 KB |
Output isn't correct |
| 19 |
Incorrect |
204 ms |
31056 KB |
Output isn't correct |
| 20 |
Incorrect |
203 ms |
56912 KB |
Output isn't correct |
