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Submission #41408

# Submission time Handle Problem Language Result Execution time Memory
41408 2018-02-17T07:35:27 Z fest Palembang Bridges (APIO15_bridge) C++14
22 / 100
 90 ms 1640 KB 
// fest
#include <bits/stdc++.h>	

#define pb push_back
#define F first
#define S second
#define y1 dasdasfasfas
#define x1 wqdadfasfasfas
#define All(c) c.begin(), c.end()
#define SZ(A) (int((A).size()))
#define umap unordered_map
#define FILENAME ""
#define __ fflush(stdout)

typedef long long ll;
typedef long double ld;    

using namespace std;

void FREOPEN() {
	#ifdef COMP
		freopen(".in", "r", stdin);
		freopen("2.out", "w", stdout);
	#else
		freopen(FILENAME".in", "r", stdin);
		freopen(FILENAME".out", "w", stdout);
	#endif
}                           

inline double Time() {return (clock() * 1.0) / CLOCKS_PER_SEC; }             

const int N = 200500, inf = 1e9 + 1, MOD = (int)1e9 + 7;

char CH[N];

const ll INF = 1e18;

const int dx[] = {1, -1, 0, 0, -1, 1, -1, 1};
const int dy[] = {0, 0, 1, -1, -1, 1, 1, -1};

vector<int> f, s;

ll check(int p) {
	ll ret = 0;
	for (auto i : f) ret += abs(i - p);
	for (auto i : s) ret += abs(i - p);
	return ret;
}

int main() {
  
	int k, n;
	cin >> k >> n;
	ll un = 0;
	for (int i = 1; i <= n; i++) {
		char t1, t2;
		int p1, p2;
		scanf("\n%c %d %c %d", &t1, &p1, &t2, &p2);
		if (t2 == 'A') swap(t1, t2), swap(p1, p2);
		if (t1 == t2) {
			un += abs(p2 - p1);
			continue;
		}
		f.pb(p1);
		s.pb(p2);
	}
	sort(All(f)), sort(All(s));
	int l = 0;
	int r = inf;
	while (r - l > 1) {
		int mid = (l + r) / 2;
		if (check(mid) > check(mid + 1)) l = mid;
		else r = mid;
	}
	cout << un + SZ(f) + min(check(l), check(r));
	return 0;	
}

Compilation message

bridge.cpp: In function 'void FREOPEN()':
bridge.cpp:25:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen(FILENAME".in", "r", stdin);
                                     ^
bridge.cpp:26:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen(FILENAME".out", "w", stdout);
                                       ^
bridge.cpp: In function 'int main()':
bridge.cpp:58:45: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("\n%c %d %c %d", &t1, &p1, &t2, &p2);
                                             ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 248 KB Output is correct
2 Correct 2 ms 352 KB Output is correct
3 Correct 2 ms 404 KB Output is correct
4 Correct 2 ms 476 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 600 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 2 ms 600 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 600 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 2 ms 600 KB Output is correct
4 Correct 2 ms 600 KB Output is correct
5 Correct 3 ms 600 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 600 KB Output is correct
10 Correct 3 ms 600 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 48 ms 1596 KB Output is correct
13 Correct 79 ms 1596 KB Output is correct
14 Correct 61 ms 1596 KB Output is correct
15 Correct 47 ms 1596 KB Output is correct
16 Correct 54 ms 1596 KB Output is correct
17 Correct 62 ms 1596 KB Output is correct
18 Correct 65 ms 1608 KB Output is correct
19 Correct 78 ms 1608 KB Output is correct
20 Correct 90 ms 1608 KB Output is correct
21 Correct 72 ms 1640 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1640 KB Output is correct
2 Correct 2 ms 1640 KB Output is correct
3 Incorrect 2 ms 1640 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1640 KB Output is correct
2 Correct 2 ms 1640 KB Output is correct
3 Incorrect 2 ms 1640 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1640 KB Output is correct
2 Correct 2 ms 1640 KB Output is correct
3 Incorrect 2 ms 1640 KB Output isn't correct
4 Halted 0 ms 0 KB -