oj.uz

답안 #244695

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
244695 2020-07-04T15:47:05 Z TheLorax Political Development (BOI17_politicaldevelopment) C++11
4 / 100
 397 ms 524292 KB 
#include <bits/stdc++.h>

//#pragma GCC optimize ("O3")
//#pragma GCC optimize ("Ofast")

#define F first
#define S second
#define MT make_tuple
#define MP make_pair
#define SZ(a) ((int)(a).size())
#define PB push_back
#define LEFT(i) (2*(i))
#define RIGHT(i) (2*(i)+1)
#define PAR(i) ((i)/2)
#define ALL(a) (a).begin(), (a).end()
#define END(s) {cout << s;return;}

using namespace std;

typedef long long ll;
typedef pair<ll, ll> ii;

int n;
std::vector<std::vector<int> > e;

void rek(int a, int f, int s){
  for(auto x: e[a]){
    if(x==s){
      printf("3\n");
      exit(0);
    } if(x==f)
      continue;
    rek(x, a, f);
  }
}

int main(){
  int k;
  scanf("%d %d", &n, &k);
  e.resize(n);
  for(int i=0; i<n; i++){
    int d; scanf("%d", &d);
    for(int j=0; j<d; j++){
      int t;
      scanf("%d", &t);
      e[i].PB(t);
    }
  }

  //k<=3
  for(int i=0; i<n; i++)
    rek(i, -1, -1);
  //k<=2
  for(int i=0; i<n; i++)
    if(SZ(e[i])){
      printf("2\n");
      return 0;
    }
  //k<=1
  printf("1\n");
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:39:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &n, &k);
   ~~~~~^~~~~~~~~~~~~~~~~
politicaldevelopment.cpp:42:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     int d; scanf("%d", &d);
            ~~~~~^~~~~~~~~~
politicaldevelopment.cpp:45:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d", &t);
       ~~~~~^~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 397 ms 640 KB Output is correct
4 Correct 136 ms 640 KB Output is correct
5 Correct 128 ms 768 KB Output is correct
6 Correct 143 ms 640 KB Output is correct
7 Correct 139 ms 640 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 128 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 397 ms 640 KB Output is correct
4 Correct 136 ms 640 KB Output is correct
5 Correct 128 ms 768 KB Output is correct
6 Correct 143 ms 640 KB Output is correct
7 Correct 139 ms 640 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 128 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 119 ms 640 KB Output is correct
12 Correct 119 ms 760 KB Output is correct
13 Runtime error 331 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
14 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Runtime error 310 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 397 ms 640 KB Output is correct
4 Correct 136 ms 640 KB Output is correct
5 Correct 128 ms 768 KB Output is correct
6 Correct 143 ms 640 KB Output is correct
7 Correct 139 ms 640 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 128 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 119 ms 640 KB Output is correct
12 Correct 119 ms 760 KB Output is correct
13 Runtime error 331 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
14 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 397 ms 640 KB Output is correct
4 Correct 136 ms 640 KB Output is correct
5 Correct 128 ms 768 KB Output is correct
6 Correct 143 ms 640 KB Output is correct
7 Correct 139 ms 640 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 128 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 119 ms 640 KB Output is correct
12 Correct 119 ms 760 KB Output is correct
13 Runtime error 331 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
14 Halted 0 ms 0 KB -