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Submission #862725

# Submission time Handle Problem Language Result Execution time Memory
862725 2023-10-19T00:19:06 Z Ahmed_Solyman Osumnjičeni (COCI21_osumnjiceni) C++14
0 / 110
 59 ms 516 KB 
/*
In the name of Allah
made by: Ahmed_Solyman
*/
#include <bits/stdc++.h>
#include <ext/rope>
 
using namespace std;
using namespace __gnu_cxx;
#pragma GCC optimize("-Ofast")
#pragma GCC optimize("-O1")
//-------------------------------------------------------------//
typedef long long ll;
typedef unsigned long long ull;
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define PI acos(-1)
#define lb lower_bound
#define ub upper_bound
#define endl '\n'
#define all(v) v.begin(),v.end()
#define allr(v) v.rbegin(),v.rend()
#define sum_to(n) (n*(n+1))/2
#define pb push_back
#define pf push_front
#define fil(arr,x) memset(arr,x,sizeof(arr))
const ll mod=1e9+7;
int dx[8]={0,1,0,-1,1,1,-1,-1};
int dy[8]={1,0,-1,0,1,-1,-1,1};
//-------------------------------------------------------------//
ll lcm(ll a,ll b)
{
    return (max(a,b)/__gcd(a,b))*min(a,b);
}
void person_bool(bool x)
{
    cout<<(x?"YES":"NO")<<endl;
}
const int N=2e5+5;
int l[N],r[N],dp[N][21],Log[N];
int main()
{
    //freopen("input.txt","r",stdin);
    //freopen("output.txt","w",stdout);
    #ifndef ONLINE_JUDGE
  	freopen("input.in", "r", stdin);
    freopen("output.out", "w", stdout);
    #endif
    fast
    int n;cin>>n;
    for(int i=1;i<=n;i++){
    	cin>>l[i]>>r[i];
    }
    for(int i=n;i>=1;i--){
    	dp[i][0]=n+1;
    	for(int j=i+1;j<=n;j++){
    		if(!(l[j]>r[i] || r[j]<l[i])){
    			dp[i][0]=j;
    			break;
    		}
    	}
    }
    int q;cin>>q;
    while(q--){
    	int a,b;cin>>a>>b;
    	if(a==b){
    		cout<<1<<endl;
    		continue;
    	}
    	int ans=0;
    	while(a<=b)a=dp[a][0],ans++;
    	cout<<ans<<endl;
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:45:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |    freopen("input.in", "r", stdin);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:46:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |     freopen("output.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 55 ms 516 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 57 ms 504 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 57 ms 504 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 512 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 50.0

# Verdict Execution time Memory Grader output
1 Runtime error 55 ms 516 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -