Submission #456191

#	Time	Username	Problem	Language	Result	Execution time	Memory
456191		nonsensenonsense1	Palembang Bridges (APIO15_bridge)	C++17	22 / 100	53 ms	3456 KiB

bridge

#include <cstdio>
#include <algorithm>
#include <vector>

const int N = 100000;
int n, task;
std::vector<int> a;

int main() 
{
	scanf("%d%d", &task, &n);
	long long ans_add = 0;
	for (int i = 0; i < n; ++i) {
		char type1, type2;
		int l, r;
		scanf(" %c%d %c%d", &type1, &l, &type2, &r);
		if (l > r) std::swap(l, r);
		if (type1 == type2) ans_add += r - l;
		else {
			++ans_add;
			a.push_back(l);
			a.push_back(r);
		}
	}
	std::sort(a.begin(), a.end());
	long long ans = 0;
	for (int i = 0; i < (int)a.size() / 2; ++i) ans += a[a.size() / 2] - a[i];
	for (int i = (int)a.size() / 2; i < (int)a.size(); ++i) ans += a[i] - a[a.size() / 2];
	printf("%lld\n", ans_add + ans);
	return 0;
}

Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |  scanf("%d%d", &task, &n);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
bridge.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |   scanf(" %c%d %c%d", &type1, &l, &type2, &r);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37