oj.uz

Submission #200282

# Submission time Handle Problem Language Result Execution time Memory
200282 2020-02-06T03:27:23 Z arnold518 Two Dishes (JOI19_dishes) C++14
10 / 100
 10000 ms 39120 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e6;
const ll INF = 1e18;

int N, M;
ll A[MAXN+10], S[MAXN+10], P[MAXN+10];
ll B[MAXN+10], T[MAXN+10], Q[MAXN+10];
int X[MAXN+10], Y[MAXN+10];
ll ans;

struct Point
{
	int x, y; ll val;
	bool operator < (const Point &p)
	{
		if(x==p.x) return y>p.y;
		return x<p.x;
	}
};
vector<Point> V;

ll tree[MAXN*4+10], maxv[MAXN*4+10], add[MAXN*4+10];

void init(int node, int tl, int tr)
{
	add[node]=0; maxv[node]=-INF; tree[node]=0;
	if(tl==tr) return;
	int mid=tl+tr>>1;
	init(node*2, tl, mid);
	init(node*2+1, mid+1, tr);
}

void busy(int node, int tl, int tr)
{
	tree[node]=max(maxv[node], tree[node])+add[node];
	if(tl!=tr)
	{
		ll a, b, c, d;
		a=maxv[node*2], b=add[node*2], c=maxv[node], d=add[node];
		c-=b; swap(b, c);
		maxv[node*2]=max(a, b); add[node*2]=c+d;

		a=maxv[node*2+1], b=add[node*2+1], c=maxv[node], d=add[node];
		c-=b; swap(b, c);
		maxv[node*2+1]=max(a, b); add[node*2+1]=c+d;
		if(maxv[node]!=-INF) maxv[node*2+1]=max(maxv[node*2+1], max(maxv[node*2], tree[node*2])+add[node*2]);
	}
	maxv[node]=-INF; add[node]=0;
}

void update1(int node, int tl, int tr, int l, int r, ll k)
{
	busy(node, tl, tr);
	if(r<tl || tr<l) return;
	if(l<=tl && tr<=r)
	{
		//printf("UPDATE1 %d %d %d %d : %lld\n", tl, tr, l, r, k);
		maxv[node]=k;
		busy(node, tl, tr);
		return;
	}
	int mid=tl+tr>>1;
	update1(node*2, tl, mid, l, r, k);
	update1(node*2+1, mid+1, tr, l, r, max(tree[node*2], k));
	tree[node]=max(tree[node*2], tree[node*2+1]);
}

void update2(int node, int tl, int tr, int l, int r, ll k)
{
	busy(node, tl, tr);
	if(r<tl || tr<l) return;
	if(l<=tl && tr<=r)
	{
		add[node]=k;
		busy(node, tl, tr);
		return;
	}
	int mid=tl+tr>>1;
	update2(node*2, tl, mid, l, r, k);
	update2(node*2+1, mid+1, tr, l, r, k);
	tree[node]=max(tree[node*2], tree[node*2+1]);
}

ll query(int node, int tl, int tr, int pos)
{
	busy(node, tl, tr);
	if(tl==tr) return tree[node];
	int mid=tl+tr>>1;
	if(pos<=mid) return query(node*2, tl, mid, pos);
	else return query(node*2+1, mid+1, tr, pos);
}

int main()
{
	int i, j, k;

	scanf("%d%d", &N, &M);
	for(i=1; i<=N; i++) scanf("%lld%lld%lld", &A[i], &S[i], &P[i]);
	for(i=1; i<=M; i++) scanf("%lld%lld%lld", &B[i], &T[i], &Q[i]);

	for(i=1; i<=N; i++) A[i]+=A[i-1];
	for(i=1; i<=M; i++) B[i]+=B[i-1];

	for(i=1; i<=N; i++) X[i]=upper_bound(B, B+M+1, S[i]-A[i])-B-1;
	for(i=1; i<=M; i++) Y[i]=upper_bound(A, A+N+1, T[i]-B[i])-A-1;

	for(i=1; i<=N; i++) ans+=P[i];
	for(i=1; i<=N; i++) if(X[i]+1<=M) V.push_back({i-1, X[i]+1, -P[i]});
	for(i=1; i<=M; i++) if(Y[i]>=0) V.push_back({Y[i], i, Q[i]});

	sort(V.begin(), V.end());
	
	init(1, 0, M);
	//for(i=0; i<=M; i++) printf("%4lld ", i); printf("\n");
	for(j=0; j<V.size(); j++)
	{
		if(j+1<V.size() && V[j].x==V[j+1].x && V[j].y==V[j+1].y) { V[j+1].val+=V[j].val; continue; }
		Point it=V[j];
		
		//D[0]=C[0]; for(i=1; i<=M; i++) D[i]=max(D[i-1], C[i]);
		//for(i=it.y; i<=M; i++) C[i]=D[i]+it.val;

		update1(1, 0, M, it.y, M, -INF);
		for(i=0; i<=M; i++) query(1, 0, M, i);
		//for(i=0; i<=M; i++) printf("%4lld ", query(1, 0, M, i)); printf(" : %d %lld 1\n", it.y, it.val);
		update2(1, 0, M, it.y, M, it.val);
		for(i=0; i<=M; i++) query(1, 0, M, i);
		//for(i=0; i<=M; i++) printf("%4lld ", query(1, 0, M, i)); printf(" : %d %lld 2\n", it.y, it.val);
	}
	ans+=query(1, 0, M, M);
	printf("%lld\n", ans);
}

Compilation message

dishes.cpp: In function 'void init(int, int, int)':
dishes.cpp:34:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
dishes.cpp: In function 'void update1(int, int, int, int, int, ll)':
dishes.cpp:68:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
dishes.cpp: In function 'void update2(int, int, int, int, int, ll)':
dishes.cpp:84:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
dishes.cpp: In function 'll query(int, int, int, int)':
dishes.cpp:94:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
dishes.cpp: In function 'int main()':
dishes.cpp:121:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(j=0; j<V.size(); j++)
           ~^~~~~~~~~
dishes.cpp:123:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(j+1<V.size() && V[j].x==V[j+1].x && V[j].y==V[j+1].y) { V[j+1].val+=V[j].val; continue; }
      ~~~^~~~~~~~~
dishes.cpp:101:12: warning: unused variable 'k' [-Wunused-variable]
  int i, j, k;
            ^
dishes.cpp:103:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~
dishes.cpp:104:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=N; i++) scanf("%lld%lld%lld", &A[i], &S[i], &P[i]);
                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dishes.cpp:105:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=M; i++) scanf("%lld%lld%lld", &B[i], &T[i], &Q[i]);
                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 10079 ms 29776 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 248 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 248 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 1250 ms 764 KB Output is correct
18 Correct 1243 ms 888 KB Output is correct
19 Correct 1580 ms 888 KB Output is correct
20 Correct 1102 ms 760 KB Output is correct
21 Correct 1506 ms 888 KB Output is correct
22 Correct 1644 ms 888 KB Output is correct
23 Correct 1607 ms 888 KB Output is correct

Subtask #4
0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 248 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 1250 ms 764 KB Output is correct
18 Correct 1243 ms 888 KB Output is correct
19 Correct 1580 ms 888 KB Output is correct
20 Correct 1102 ms 760 KB Output is correct
21 Correct 1506 ms 888 KB Output is correct
22 Correct 1644 ms 888 KB Output is correct
23 Correct 1607 ms 888 KB Output is correct
24 Execution timed out 10029 ms 39120 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 248 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 1250 ms 764 KB Output is correct
18 Correct 1243 ms 888 KB Output is correct
19 Correct 1580 ms 888 KB Output is correct
20 Correct 1102 ms 760 KB Output is correct
21 Correct 1506 ms 888 KB Output is correct
22 Correct 1644 ms 888 KB Output is correct
23 Correct 1607 ms 888 KB Output is correct
24 Execution timed out 10029 ms 39120 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 248 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 1250 ms 764 KB Output is correct
18 Correct 1243 ms 888 KB Output is correct
19 Correct 1580 ms 888 KB Output is correct
20 Correct 1102 ms 760 KB Output is correct
21 Correct 1506 ms 888 KB Output is correct
22 Correct 1644 ms 888 KB Output is correct
23 Correct 1607 ms 888 KB Output is correct
24 Execution timed out 10029 ms 39120 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #7
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 10079 ms 29776 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 10079 ms 29776 KB Time limit exceeded
2 Halted 0 ms 0 KB -