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Submission #975624

# Submission time Handle Problem Language Result Execution time Memory
975624 2024-05-05T15:01:07 Z Batorgil952 Strange Device (APIO19_strange_device) C++14
20 / 100
 533 ms 524288 KB 
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair

using namespace std;

const ll N=1e7+7;
struct Node{
	ll l;
	ll r;
	ll vl=-1;
	ll vr=-1;
	ll val=0;
};
Node tree[N];
ll K;

ll GCD(ll x, ll y){
	while(x*y!=0){
		if(x>y) x%=y;
		else y%=x;
	}
	return x+y;
}

void update(ll v, ll ql, ll qr){
	if(tree[v].val==tree[v].r-tree[v].l+1){
		return;
	}
	if(qr<tree[v].l && tree[v].r<ql){
		return;
	}
	if(ql<=tree[v].l && tree[v].r<=qr){
		tree[v].val=tree[v].r-tree[v].l+1;
		return;
	}
	ll mid=(tree[v].l+tree[v].r)/2;
	if(qr<=mid){
		if(tree[v].vl==-1){
			K++;
			tree[v].vl=K;
			tree[tree[v].vl].l=tree[v].l;
			tree[tree[v].vl].r=mid;
			update(tree[v].vl, ql, qr);
		}
		else if(tree[tree[v].vl].val!=mid-tree[v].l+1){
			update(tree[v].vl, ql, qr);
		}
	}
	else if(mid+1<=ql){
		if(tree[v].vr==-1){
			K++;
			tree[v].vr=K;
			tree[tree[v].vr].l=mid+1;
			tree[tree[v].vr].r=tree[v].r;
			update(tree[v].vr, ql, qr);
		}
		else if(tree[tree[v].vr].val!=tree[v].r-mid){
			update(tree[v].vr, ql, qr);
		}
	}
	else{
		if(tree[v].vl==-1){
			K++;
			tree[v].vl=K;
			tree[tree[v].vl].l=tree[v].l;
			tree[tree[v].vl].r=mid;
			update(tree[v].vl, ql, qr);
		}
		else if(tree[tree[v].vl].val!=mid-tree[v].l+1){
			update(tree[v].vl, ql, qr);
		}
		if(tree[v].vr==-1){
			K++;
			tree[v].vr=K;
			tree[tree[v].vr].l=mid+1;
			tree[tree[v].vr].r=tree[v].r;
			update(tree[v].vr, ql, qr);
		}
		else if(tree[tree[v].vr].val!=tree[v].r-mid){
			update(tree[v].vr, ql, qr);
		}
	}
	tree[v].val=tree[tree[v].vl].val+tree[tree[v].vr].val;
//	cout<<v<<" "<<ql<<" "<<qr<<" "<<tree[v].l<<" "<<tree[v].r<<" "<<tree[v].val<<endl;
	
}

ll query(ll v, ll l, ll r){
	return tree[v].val;
}


int main(){
	ll n, i, A, B, l, r, k, m, ma;
	
	scanf("%lld",&n);
	scanf("%lld",&A);
	scanf("%lld",&B);
	
	m=GCD(B+1, A);
	A/=m;
	ma=1e18+1;
	if(ma/A<B){
		k=ma;
	}
	else{
		k=A*B;
	}
//	cout<<k<<endl;
	
	tree[0].l=0;
	tree[0].r=k-1;
	K=0;
	for(i=1; i<=n; i++){
		scanf("%lld",&l);
		scanf("%lld",&r);
		if(r-l+1>=k) update(0, 0, k-1);
		else{
			if(l%k<=r%k){
				update(0, l%k, r%k);
			}
			else{
				update(0, l%k, k-1);
				update(0, 0, r%k);
			}
		}
	}
	
	printf("%lld\n", query(0, 0, k-1));
	
	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:98:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   98 |  scanf("%lld",&n);
      |  ~~~~~^~~~~~~~~~~
strange_device.cpp:99:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |  scanf("%lld",&A);
      |  ~~~~~^~~~~~~~~~~
strange_device.cpp:100:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  100 |  scanf("%lld",&B);
      |  ~~~~~^~~~~~~~~~~
strange_device.cpp:117:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |   scanf("%lld",&l);
      |   ~~~~~^~~~~~~~~~~
strange_device.cpp:118:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  118 |   scanf("%lld",&r);
      |   ~~~~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 391656 KB Output is correct
2 Correct 123 ms 391952 KB Output is correct
3 Correct 123 ms 392076 KB Output is correct
4 Correct 120 ms 391764 KB Output is correct
5 Correct 120 ms 391672 KB Output is correct
6 Correct 117 ms 391760 KB Output is correct
7 Correct 118 ms 391632 KB Output is correct
8 Correct 118 ms 391768 KB Output is correct
9 Correct 123 ms 391568 KB Output is correct
10 Correct 118 ms 391660 KB Output is correct
11 Correct 118 ms 391760 KB Output is correct
12 Correct 119 ms 391760 KB Output is correct
13 Correct 123 ms 391752 KB Output is correct
14 Correct 118 ms 391804 KB Output is correct
15 Correct 119 ms 391668 KB Output is correct
16 Correct 122 ms 392072 KB Output is correct
17 Correct 161 ms 395328 KB Output is correct
18 Correct 122 ms 391660 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 391660 KB Output is correct
2 Correct 124 ms 391628 KB Output is correct
3 Correct 119 ms 391764 KB Output is correct
4 Correct 119 ms 391764 KB Output is correct
5 Correct 116 ms 391760 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 126 ms 391576 KB Output is correct
2 Correct 120 ms 391764 KB Output is correct
3 Correct 121 ms 391660 KB Output is correct
4 Correct 119 ms 391604 KB Output is correct
5 Correct 429 ms 417108 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 391764 KB Output is correct
2 Correct 522 ms 426704 KB Output is correct
3 Runtime error 533 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 391764 KB Output is correct
2 Correct 522 ms 426704 KB Output is correct
3 Runtime error 533 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 391764 KB Output is correct
2 Correct 522 ms 426704 KB Output is correct
3 Runtime error 533 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 162 ms 391760 KB Output is correct
2 Correct 190 ms 395348 KB Output is correct
3 Correct 214 ms 395520 KB Output is correct
4 Runtime error 448 ms 524288 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 391656 KB Output is correct
2 Correct 123 ms 391952 KB Output is correct
3 Correct 123 ms 392076 KB Output is correct
4 Correct 120 ms 391764 KB Output is correct
5 Correct 120 ms 391672 KB Output is correct
6 Correct 117 ms 391760 KB Output is correct
7 Correct 118 ms 391632 KB Output is correct
8 Correct 118 ms 391768 KB Output is correct
9 Correct 123 ms 391568 KB Output is correct
10 Correct 118 ms 391660 KB Output is correct
11 Correct 118 ms 391760 KB Output is correct
12 Correct 119 ms 391760 KB Output is correct
13 Correct 123 ms 391752 KB Output is correct
14 Correct 118 ms 391804 KB Output is correct
15 Correct 119 ms 391668 KB Output is correct
16 Correct 122 ms 392072 KB Output is correct
17 Correct 161 ms 395328 KB Output is correct
18 Correct 122 ms 391660 KB Output is correct
19 Correct 134 ms 391660 KB Output is correct
20 Correct 124 ms 391628 KB Output is correct
21 Correct 119 ms 391764 KB Output is correct
22 Correct 119 ms 391764 KB Output is correct
23 Correct 116 ms 391760 KB Output is correct
24 Correct 126 ms 391576 KB Output is correct
25 Correct 120 ms 391764 KB Output is correct
26 Correct 121 ms 391660 KB Output is correct
27 Correct 119 ms 391604 KB Output is correct
28 Correct 429 ms 417108 KB Output is correct
29 Correct 125 ms 391764 KB Output is correct
30 Correct 522 ms 426704 KB Output is correct
31 Runtime error 533 ms 524288 KB Execution killed with signal 9
32 Halted 0 ms 0 KB -