Submission #25768

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
25768	2017-06-24 05:37:12	kdh9949	전압 (JOI14_voltage)	C++14	100 / 100	339 ms	22672 KiB

voltage

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#include <bits/stdc++.h>
using namespace std;
struct E{ int x, i; };
int n, m, vis[100010], cr, d[100010], ps[100010], pe[100010], cnt, dc, fl, ans;
vector<E> e[100010];
vector<int> t[100010];
void T_T(){ puts("0"); exit(0); }
void col(int x, int c){
  vis[x] = c;
  for(auto &i : e[x]){
    if(vis[i.x] && vis[i.x] != 3 - c) fl = 0;
    else if(!vis[i.x]) col(i.x, 3 - c);
  }
}
const int sz = 131072;
struct Seg{
  int dat[2 * sz];
  void upd(int x, int v){ for(x += sz; x; x /= 2) dat[x] += v; }
  int get(int s, int e){
    int ret = 0;
    for(s += sz, e += sz; s <= e; s /= 2, e /= 2){
      if(s % 2 == 1) ret += dat[s++];
      if(e % 2 == 0) ret += dat[e--];
    }
    return ret;
 
 
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Compilation message (stderr)

voltage.cpp: In function 'int main()':
voltage.cpp:64:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
                       ^
voltage.cpp:66:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &x, &y);
                        ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 35 / 35
• Subtask 4: 45 / 45