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답안 #219773

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
219773 2020-04-06T10:29:36 Z _7_7_ 별자리 3 (JOI20_constellation3) C++14
100 / 100
 272 ms 33528 KB 
#include <bits/stdc++.h>

#define int long long
//#pragma GCC optimize("Ofast")
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")


#define file(s) freopen(s".in","r",stdin); freopen(s".out","w",stdout);
#define all(x) x.begin(), x.end()
#define sz(s) (int)s.size()
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define s second
#define f first


using namespace std;


typedef pair < long long, long long > pll;
typedef pair < int, int > pii;
typedef unsigned long long ull;
typedef vector < pii > vpii;
typedef vector < int > vi;
typedef long double ldb;
typedef long long ll;
typedef double db;


const int inf = 1e9, maxn = 4e5 + 148, mod = 777777777, N = 2e5 + 61;
const int dx[] = {1, -1, 0, 0}, dy[] = {0, 0, 1, -1}, block = 455;
const pii base = mp(1171, 3307), Mod = mp(1e9 + 7, 1e9 + 9);
const db eps = 1e-12, pi = 3.14159265359;
const ll INF = 1e18;


int t[N], n, h, x, y, z, m, p[N], l[N], r[N], dp[N], sum;
bool was[N];
vpii gg[N];
vi g[N];

void inc (int pos, int x) {
    while (pos < N) {
        t[pos] += x;
        pos |= pos + 1;
    }
}

int Get (int r) {
    int res = 0;
    while (r >= 0) {
        res += t[r];
        r = (r & (r + 1)) - 1;
    }
    return res;
}

int update (int l, int r, int x) {
    inc(l, x);
    inc(r + 1, -x);
}

int get (int v) {
    return v == p[v] ? v : p[v] = get(p[v]);
}

void merge (int v, int u) {
    v = get(v);
    u = get(u);

    if (r[u] - l[u] > r[v] - l[u])
        swap(v, u);

//    cerr << " + " << l[v] << ' ' << r[v] << ' ' << dp[u] << endl;
//    cerr << " + " << l[u] << ' ' << r[u] << ' ' << dp[v] << endl;
    update(l[v], r[v], dp[u]);
    update(l[u], r[u], dp[v]);
	
	p[u] = v;
    dp[v] += dp[u];
    l[v] = min(l[v], l[u]);
    r[v] = max(r[v], r[u]);
}




main () {
//    file("");
    scanf("%lld", &n);
    for (int i = 1; i <= n; ++i) {
        scanf("%lld", &h);
        g[h].pb(i);
    }

    for (int i = 1; i <= n; ++i)
        l[i] = r[i] = p[i] = i;

    scanf("%lld", &m);
    for (int i = 1; i <= m; ++i) {
        scanf("%lld%lld%lld", &x, &y, &z);
        gg[y].pb({x, z});
        sum += z;
    }

    for (int j = 1; j <= n; ++j) {
        for (auto i : gg[j]) 
            dp[get(i.f)] = max(dp[get(i.f)], Get(i.f) + i.s);
       

        for (auto i : g[j]) {
            was[i] = 1;
            if (was[i - 1])
                merge(i - 1, i);
            if (was[i + 1])
                merge(i + 1, i);
        }

/*		for (int i = 1; i <= n; ++i)
			if (i == get(i))
				cout << i << ' ' << dp[i] << endl;
		cout << endl;                             */
    }

    int ans = 0;
    for (int i = 1; i <= n; ++i)
        ans = max(ans, dp[i]);    


    cout << sum - ans << endl;
}

Compilation message

constellation3.cpp: In function 'long long int update(long long int, long long int, long long int)':
constellation3.cpp:63:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
constellation3.cpp: At global scope:
constellation3.cpp:90:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^
constellation3.cpp: In function 'int main()':
constellation3.cpp:92:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &n);
     ~~~~~^~~~~~~~~~~~
constellation3.cpp:94:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld", &h);
         ~~~~~^~~~~~~~~~~~
constellation3.cpp:101:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &m);
     ~~~~~^~~~~~~~~~~~
constellation3.cpp:103:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld%lld", &x, &y, &z);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9856 KB Output is correct
3 Correct 10 ms 9856 KB Output is correct
4 Correct 10 ms 9856 KB Output is correct
5 Correct 10 ms 9856 KB Output is correct
6 Correct 11 ms 9856 KB Output is correct
7 Correct 10 ms 9856 KB Output is correct
8 Correct 10 ms 9856 KB Output is correct
9 Correct 10 ms 9856 KB Output is correct
10 Correct 10 ms 9856 KB Output is correct
11 Correct 10 ms 9856 KB Output is correct
12 Correct 10 ms 9728 KB Output is correct
13 Correct 10 ms 9856 KB Output is correct
14 Correct 10 ms 9856 KB Output is correct
15 Correct 10 ms 9856 KB Output is correct
16 Correct 10 ms 9856 KB Output is correct
17 Correct 10 ms 9856 KB Output is correct
18 Correct 10 ms 9856 KB Output is correct
19 Correct 11 ms 9856 KB Output is correct
20 Correct 10 ms 9856 KB Output is correct
21 Correct 10 ms 9856 KB Output is correct
22 Correct 10 ms 9856 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9856 KB Output is correct
3 Correct 10 ms 9856 KB Output is correct
4 Correct 10 ms 9856 KB Output is correct
5 Correct 10 ms 9856 KB Output is correct
6 Correct 11 ms 9856 KB Output is correct
7 Correct 10 ms 9856 KB Output is correct
8 Correct 10 ms 9856 KB Output is correct
9 Correct 10 ms 9856 KB Output is correct
10 Correct 10 ms 9856 KB Output is correct
11 Correct 10 ms 9856 KB Output is correct
12 Correct 10 ms 9728 KB Output is correct
13 Correct 10 ms 9856 KB Output is correct
14 Correct 10 ms 9856 KB Output is correct
15 Correct 10 ms 9856 KB Output is correct
16 Correct 10 ms 9856 KB Output is correct
17 Correct 10 ms 9856 KB Output is correct
18 Correct 10 ms 9856 KB Output is correct
19 Correct 11 ms 9856 KB Output is correct
20 Correct 10 ms 9856 KB Output is correct
21 Correct 10 ms 9856 KB Output is correct
22 Correct 10 ms 9856 KB Output is correct
23 Correct 13 ms 9984 KB Output is correct
24 Correct 12 ms 9984 KB Output is correct
25 Correct 12 ms 9984 KB Output is correct
26 Correct 11 ms 9984 KB Output is correct
27 Correct 12 ms 9984 KB Output is correct
28 Correct 11 ms 9984 KB Output is correct
29 Correct 11 ms 9984 KB Output is correct
30 Correct 12 ms 9984 KB Output is correct
31 Correct 13 ms 9984 KB Output is correct
32 Correct 11 ms 9984 KB Output is correct
33 Correct 11 ms 9984 KB Output is correct
34 Correct 11 ms 9984 KB Output is correct
35 Correct 11 ms 9984 KB Output is correct
36 Correct 11 ms 9984 KB Output is correct
37 Correct 11 ms 9984 KB Output is correct
38 Correct 11 ms 9984 KB Output is correct
39 Correct 11 ms 9984 KB Output is correct
40 Correct 11 ms 9984 KB Output is correct
41 Correct 11 ms 9984 KB Output is correct
42 Correct 11 ms 9984 KB Output is correct
43 Correct 11 ms 9984 KB Output is correct
44 Correct 11 ms 9984 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9856 KB Output is correct
3 Correct 10 ms 9856 KB Output is correct
4 Correct 10 ms 9856 KB Output is correct
5 Correct 10 ms 9856 KB Output is correct
6 Correct 11 ms 9856 KB Output is correct
7 Correct 10 ms 9856 KB Output is correct
8 Correct 10 ms 9856 KB Output is correct
9 Correct 10 ms 9856 KB Output is correct
10 Correct 10 ms 9856 KB Output is correct
11 Correct 10 ms 9856 KB Output is correct
12 Correct 10 ms 9728 KB Output is correct
13 Correct 10 ms 9856 KB Output is correct
14 Correct 10 ms 9856 KB Output is correct
15 Correct 10 ms 9856 KB Output is correct
16 Correct 10 ms 9856 KB Output is correct
17 Correct 10 ms 9856 KB Output is correct
18 Correct 10 ms 9856 KB Output is correct
19 Correct 11 ms 9856 KB Output is correct
20 Correct 10 ms 9856 KB Output is correct
21 Correct 10 ms 9856 KB Output is correct
22 Correct 10 ms 9856 KB Output is correct
23 Correct 13 ms 9984 KB Output is correct
24 Correct 12 ms 9984 KB Output is correct
25 Correct 12 ms 9984 KB Output is correct
26 Correct 11 ms 9984 KB Output is correct
27 Correct 12 ms 9984 KB Output is correct
28 Correct 11 ms 9984 KB Output is correct
29 Correct 11 ms 9984 KB Output is correct
30 Correct 12 ms 9984 KB Output is correct
31 Correct 13 ms 9984 KB Output is correct
32 Correct 11 ms 9984 KB Output is correct
33 Correct 11 ms 9984 KB Output is correct
34 Correct 11 ms 9984 KB Output is correct
35 Correct 11 ms 9984 KB Output is correct
36 Correct 11 ms 9984 KB Output is correct
37 Correct 11 ms 9984 KB Output is correct
38 Correct 11 ms 9984 KB Output is correct
39 Correct 11 ms 9984 KB Output is correct
40 Correct 11 ms 9984 KB Output is correct
41 Correct 11 ms 9984 KB Output is correct
42 Correct 11 ms 9984 KB Output is correct
43 Correct 11 ms 9984 KB Output is correct
44 Correct 11 ms 9984 KB Output is correct
45 Correct 271 ms 31480 KB Output is correct
46 Correct 264 ms 31176 KB Output is correct
47 Correct 260 ms 31096 KB Output is correct
48 Correct 253 ms 31352 KB Output is correct
49 Correct 268 ms 31096 KB Output is correct
50 Correct 261 ms 30968 KB Output is correct
51 Correct 250 ms 31096 KB Output is correct
52 Correct 263 ms 31484 KB Output is correct
53 Correct 272 ms 31232 KB Output is correct
54 Correct 219 ms 33528 KB Output is correct
55 Correct 215 ms 33144 KB Output is correct
56 Correct 207 ms 33016 KB Output is correct
57 Correct 215 ms 32888 KB Output is correct
58 Correct 180 ms 28792 KB Output is correct
59 Correct 192 ms 28792 KB Output is correct
60 Correct 157 ms 33124 KB Output is correct
61 Correct 157 ms 28524 KB Output is correct
62 Correct 203 ms 30840 KB Output is correct
63 Correct 144 ms 27448 KB Output is correct
64 Correct 142 ms 28268 KB Output is correct
65 Correct 227 ms 31084 KB Output is correct
66 Correct 144 ms 27440 KB Output is correct