Submission #26593

#	Time	Username	Problem	Language	Result	Execution time	Memory
26593		model_code	Untitled (POI11_kon)	C++11	100 / 100	1213 ms	1156 KiB

Main

/*************************************************************************}
{*                                                                       *}
{*   Zadanie: Konspiracja (KON)                                          *}
{*   Plik:    kon.cpp                                                    *}
{*   Autor:   Jakub Pachocki                                             *}
{*   Opis:    Rozwiązanie wzorcowe                                       *}
{*            Złożoność: O(n + m)                                        *}
{*            Kodowanie znaków: UTF-8                                    *}
{*                                                                       *}
{*************************************************************************/

#include <cstdio>

const int N = 5000;

int n;

int count[N];
int degree[N];

int main() {
	scanf("%d", &n);
	int edges = 0;
	for (int i = 1; i <= n; ++i) {
		int currentDegree;
		scanf("%d", &currentDegree);
		++count[currentDegree];
		edges += currentDegree;
		while (getchar() != '\n'); // pomijamy opis krawedzi
	}
	edges /= 2;
	int last = 0;
	for (int i = n - 1; i >= 0; --i)
		for (int j = 0; j < count[i]; ++j)
			degree[last++] = i;
	int m = 1;
	int result = 0;
	int sum = 0;
	for (int i = 0; i < n - 1; ++i) {
		sum += degree[i] - i;
		if (sum == edges) {
			if (degree[i + 1] == degree[i])
				result += count[degree[i]];
			else
				++result;
		}
	}
	printf("%d\n", result);

}

Compilation message (stderr)

kon.cpp: In function 'int main()':
kon.cpp:36:6: warning: unused variable 'm' [-Wunused-variable]
  int m = 1;
      ^
kon.cpp:22:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
kon.cpp:26:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &currentDegree);
                              ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10