Submission #56557

#	Time	Username	Problem	Language	Result	Execution time	Memory
56557		leejseo	Palembang Bridges (APIO15_bridge)	C++98	22 / 100	92 ms	20040 KiB

bridge

#include <bits/stdc++.h>
using namespace std;

int K, N;
long long ans = 0;
vector<int> L;

int main(void){
	int u, v;
	char x, y;
	scanf("%d%d\n", &K, &N);
	for(int i=0; i<N; i++){
		scanf("%c %d %c %d\n", &x, &u, &y, &v);		
		if (x == y) ans += abs(u-v);
		else{
			L.push_back(u);
			L.push_back(v);
		}
	}
	sort(L.begin(), L.end());
	int M = L.size();
	if (M == 0){
		printf("%lld\n", ans);
		return 0;
	}
	long long mid = L[M/2];
	for (int i=0; i<M; i++) ans += abs(L[i] - mid);
	ans += M/2;
	printf("%lld\n", 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]
  scanf("%d%d\n", &K, &N);
  ~~~~~^~~~~~~~~~~~~~~~~~
bridge.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%c %d %c %d\n", &x, &u, &y, &v);  
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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