Submission #105102

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
105102	2019-04-10 14:34:42	Just_Solve_The_Problem	Designated Cities (JOI19_designated_cities)	C++11	0 / 100	388 ms	24568 KiB

designated_cities

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#include <bits/stdc++.h>
#define fr first
#define sc second
#define ll long long
using namespace std;
const int N = (int)2e5 + 7;
vector<pair<int, int>> gr[N];
int n;
ll ans[N];
ll h[N];
pair < ll, int > dp[N];
int tin[N], tout[N], used[N], par[N];
int tiktak;
void precalc(int v, int pr) {
  tin[v] = ++tiktak;
  par[v] = pr;
  for (auto tto : gr[v]) {
    int to = tto.fr;
    int w = tto.sc;
    if (to == pr) {
      continue;
    }
    h[v] += w;
    precalc(to, v);
    h[v] += h[to];
 
 
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Compilation message (stderr)

designated_cities.cpp: In function 'void dfs1(int, int, int)':
designated_cities.cpp:38:5: warning: unused variable 'res' [-Wunused-variable]
  ll res = 0;
     ^~~
designated_cities.cpp: At global scope:
designated_cities.cpp:75:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
designated_cities.cpp: In function 'int main()':
designated_cities.cpp:76:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
designated_cities.cpp:83:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d %d", &a, &b, &c, &d);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
designated_cities.cpp:100:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &q);
  ~~~~~^~~~~~~~~~
designated_cities.cpp:103:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
   ~~~~~^~~~~~~~~~

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• Subtask 2: 0 / 7
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• Subtask 6: 0 / 44