oj.uz

Submission #976976

# Submission time Handle Problem Language Result Execution time Memory
976976 2024-05-07T09:56:02 Z Batorgil952 Strange Device (APIO19_strange_device) C++14
20 / 100
 2810 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=5e6+6;
struct Node{
	ll l;
	ll r;
	ll vl=-1;
	ll vr=-1;
	ll al=0;
	ll ar=0;
	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].al){
			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].ar){
			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(ql<=tree[v].l){
		tree[v].al=1;
		if(!tree[v].ar){
			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(qr>=tree[v].r){
		tree[v].ar=1;
		if(!tree[v].al){
			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(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=0;
	if(tree[v].al==1){
		tree[v].val+=(mid-tree[v].l+1);
	}
	else tree[v].val+=tree[tree[v].vl].val;
	if(tree[v].ar==1){
		tree[v].val+=(tree[v].r-mid);
	}
	else tree[v].val+=tree[tree[v].vr].val;
	
}
 
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=1000000000000000002;
	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:141:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  141 |  scanf("%lld",&n);
      |  ~~~~~^~~~~~~~~~~
strange_device.cpp:142:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  142 |  scanf("%lld",&A);
      |  ~~~~~^~~~~~~~~~~
strange_device.cpp:143:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  143 |  scanf("%lld",&B);
      |  ~~~~~^~~~~~~~~~~
strange_device.cpp:160:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  160 |   scanf("%lld",&l);
      |   ~~~~~^~~~~~~~~~~
strange_device.cpp:161:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  161 |   scanf("%lld",&r);
      |   ~~~~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 139 ms 274524 KB Output is correct
2 Correct 77 ms 274512 KB Output is correct
3 Correct 75 ms 274764 KB Output is correct
4 Correct 66 ms 274256 KB Output is correct
5 Correct 68 ms 274252 KB Output is correct
6 Correct 73 ms 274228 KB Output is correct
7 Correct 67 ms 274300 KB Output is correct
8 Correct 69 ms 274256 KB Output is correct
9 Correct 68 ms 274200 KB Output is correct
10 Correct 71 ms 274352 KB Output is correct
11 Correct 67 ms 274352 KB Output is correct
12 Correct 72 ms 274384 KB Output is correct
13 Correct 75 ms 274256 KB Output is correct
14 Correct 68 ms 274260 KB Output is correct
15 Correct 70 ms 274260 KB Output is correct
16 Correct 82 ms 274640 KB Output is correct
17 Correct 114 ms 278100 KB Output is correct
18 Correct 67 ms 274388 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 274224 KB Output is correct
2 Correct 68 ms 274260 KB Output is correct
3 Correct 76 ms 274260 KB Output is correct
4 Correct 66 ms 274156 KB Output is correct
5 Correct 66 ms 274296 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 274204 KB Output is correct
2 Correct 71 ms 274260 KB Output is correct
3 Correct 79 ms 274364 KB Output is correct
4 Correct 70 ms 274260 KB Output is correct
5 Correct 434 ms 297224 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 274284 KB Output is correct
2 Correct 544 ms 307744 KB Output is correct
3 Runtime error 2364 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 69 ms 274284 KB Output is correct
2 Correct 544 ms 307744 KB Output is correct
3 Runtime error 2364 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 69 ms 274284 KB Output is correct
2 Correct 544 ms 307744 KB Output is correct
3 Runtime error 2364 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 68 ms 274256 KB Output is correct
2 Correct 149 ms 278080 KB Output is correct
3 Correct 170 ms 277996 KB Output is correct
4 Runtime error 2810 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 139 ms 274524 KB Output is correct
2 Correct 77 ms 274512 KB Output is correct
3 Correct 75 ms 274764 KB Output is correct
4 Correct 66 ms 274256 KB Output is correct
5 Correct 68 ms 274252 KB Output is correct
6 Correct 73 ms 274228 KB Output is correct
7 Correct 67 ms 274300 KB Output is correct
8 Correct 69 ms 274256 KB Output is correct
9 Correct 68 ms 274200 KB Output is correct
10 Correct 71 ms 274352 KB Output is correct
11 Correct 67 ms 274352 KB Output is correct
12 Correct 72 ms 274384 KB Output is correct
13 Correct 75 ms 274256 KB Output is correct
14 Correct 68 ms 274260 KB Output is correct
15 Correct 70 ms 274260 KB Output is correct
16 Correct 82 ms 274640 KB Output is correct
17 Correct 114 ms 278100 KB Output is correct
18 Correct 67 ms 274388 KB Output is correct
19 Correct 71 ms 274224 KB Output is correct
20 Correct 68 ms 274260 KB Output is correct
21 Correct 76 ms 274260 KB Output is correct
22 Correct 66 ms 274156 KB Output is correct
23 Correct 66 ms 274296 KB Output is correct
24 Correct 73 ms 274204 KB Output is correct
25 Correct 71 ms 274260 KB Output is correct
26 Correct 79 ms 274364 KB Output is correct
27 Correct 70 ms 274260 KB Output is correct
28 Correct 434 ms 297224 KB Output is correct
29 Correct 69 ms 274284 KB Output is correct
30 Correct 544 ms 307744 KB Output is correct
31 Runtime error 2364 ms 524288 KB Execution killed with signal 9
32 Halted 0 ms 0 KB -