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Submission #549413

# Submission time Handle Problem Language Result Execution time Memory
549413 2022-04-15T18:43:27 Z urosk Strange Device (APIO19_strange_device) C++14
100 / 100
 660 ms 86236 KB 
// __builtin_popcount(x) broj bitova
// __builtin_popcountll(x)
// __builtin_clz(x) vodece nule
// __builtin_clzll(x)
// __builtin_ctz(x) nule na pocetku
// __builtin_ctzll(x)
// 2000000011
// 2000000033
#include "bits/stdc++.h"
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#define ld double
#define ll long long
#define ull unsigned long long
#define llinf 1000000000000000000LL // 10^18
#define iinf 2000000000 // 2*10^9
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define sz(a) ((ll)(a.size()))
#define all(a) a.begin(),a.end()
#define rall(a) a.begin(),a.end(),greater<int>()
#define getunique(v) {sort(all(v)); v.erase(unique(all(v)), v.end());}
#define pi 3.14159265358979323846
#define here cerr<<"=============================================================================\n"
#define ceri(a,l,r) {for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define ceri2(a,l,r,n,m) {for(ll i = l;i<=r;i++){for(ll j = n;j<=m;j++) cerr<<a[i][j]<< " ";cerr<<endl;}}
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl
#define daj_mi_malo_vremena ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);
using namespace std;
using namespace __gnu_pbds;

template<typename T> using vc = vector<T>;
template<typename T> using vvc = vc<vc<T>>;
typedef tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
typedef tree<ll,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_multiset;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll rnd(ll l,ll r){
    return uniform_int_distribution<ll>(l,r)(rng);
}

void setIO(string inoutname)
{
	freopen((inoutname+".in").c_str(),"r",stdin);
    	freopen((inoutname+".out").c_str(),"w",stdout);
}
#define mod 1
ll gcd(ll a, ll b)
{
   if(b==0) return a;
   if(a==0) return b;
   if(a>=b)  return gcd(a%b,b);
   return  gcd(a,b%a);
}
ll lcm(ll a,ll b){
   return (a/gcd(a,b))*b;
}
ll add(ll x,ll y){
    x+=y;
    if(x<0){
        x%=mod;
        x+=mod;
	if(x==mod) x = 0;
    }else{
        if(x>=mod) x%=mod;
    }
    return x;
}
ll mul(ll a,ll b){
	ll ans = (a*b)%mod;
	if(ans<0) ans+=mod;
	return ans;
}
ll po(ll x,ll y){
    if(y==0) return 1LL;
    ll ans = po(x,y/2);
    ans = mul(ans,ans);
    if(y&1) ans = mul(ans,x);
    return ans;
}
ll inv(ll x){return po(x,mod-2);}
#define maxn 1000005
ll n;
pll a[maxn];
ll x,y;
void tc(){
	daj_mi_malo_vremena
    cin >> n >> x >> y;
    for(ll i = 1;i<=n;i++) cin >> a[i].fi >> a[i].sc;
    ll k = x/gcd(x,y+1);
    ll ans = 0;
    if(llinf/k<y){
        for(ll i = 1;i<=n;i++) ans+= a[i].sc-a[i].fi+1;
        cout<<ans<<endl;
        return;
    }
    ll p = k*y;
    vector<pll> v;
    bool sve = 0;
    for(ll i = 1;i<=n;i++){
        ll &l = a[i].fi;
        ll &r = a[i].sc;
        if(r-l+1>=p) sve = 1;
        l%=p;
        r%=p;
        if(r<l){
            v.pb({0,1});
            v.pb({p,-1});
        }
        v.pb({l,1});
        v.pb({r+1,-1});
    }
    if(sve){
        cout<<p<<endl;
        return;
    }
    sort(all(v));
    ll lst = -1;
    ll cnt = 0;
    for(pll p : v){
        ll i = p.fi;
        if(cnt) ans+=i-lst;
        lst = i;
        cnt+=p.sc;
    }
    cout<<ans<<endl;
    return;
}
int main(){
	daj_mi_malo_vremena
	//setIO("lol");
	int t; t = 1;
	while(t--){
		tc();
	}
	return 0;
}

Compilation message

strange_device.cpp: In function 'void setIO(std::string)':
strange_device.cpp:50:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |  freopen((inoutname+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:51:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |      freopen((inoutname+".out").c_str(),"w",stdout);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 1112 KB Output is correct
3 Correct 5 ms 1112 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 328 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 1516 KB Output is correct
17 Correct 59 ms 9864 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 356 ms 74116 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 484 ms 48888 KB Output is correct
3 Correct 498 ms 48960 KB Output is correct
4 Correct 528 ms 86140 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 484 ms 48888 KB Output is correct
3 Correct 498 ms 48960 KB Output is correct
4 Correct 528 ms 86140 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 531 ms 86096 KB Output is correct
7 Correct 514 ms 86052 KB Output is correct
8 Correct 520 ms 86236 KB Output is correct
9 Correct 617 ms 86132 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 484 ms 48888 KB Output is correct
3 Correct 498 ms 48960 KB Output is correct
4 Correct 528 ms 86140 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 50 ms 9796 KB Output is correct
7 Correct 51 ms 9856 KB Output is correct
8 Correct 51 ms 9760 KB Output is correct
9 Correct 52 ms 9776 KB Output is correct
10 Correct 49 ms 9796 KB Output is correct
11 Correct 52 ms 9744 KB Output is correct
12 Correct 50 ms 9848 KB Output is correct
13 Correct 54 ms 9852 KB Output is correct
14 Correct 51 ms 9740 KB Output is correct
15 Correct 58 ms 9848 KB Output is correct
16 Correct 56 ms 9800 KB Output is correct
17 Correct 67 ms 9832 KB Output is correct
18 Correct 549 ms 86036 KB Output is correct
19 Correct 504 ms 86076 KB Output is correct
20 Correct 628 ms 86056 KB Output is correct
21 Correct 57 ms 9792 KB Output is correct
22 Correct 46 ms 9744 KB Output is correct
23 Correct 144 ms 34780 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 56 ms 9052 KB Output is correct
3 Correct 56 ms 9136 KB Output is correct
4 Correct 615 ms 49140 KB Output is correct
5 Correct 59 ms 9156 KB Output is correct
6 Correct 55 ms 9188 KB Output is correct
7 Correct 55 ms 9148 KB Output is correct
8 Correct 62 ms 9128 KB Output is correct
9 Correct 52 ms 9156 KB Output is correct
10 Correct 57 ms 9212 KB Output is correct
11 Correct 58 ms 9080 KB Output is correct
12 Correct 49 ms 9160 KB Output is correct
13 Correct 58 ms 9796 KB Output is correct
14 Correct 632 ms 85992 KB Output is correct
15 Correct 57 ms 9748 KB Output is correct
16 Correct 504 ms 86064 KB Output is correct
17 Correct 515 ms 86004 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 1112 KB Output is correct
3 Correct 5 ms 1112 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 328 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 1516 KB Output is correct
17 Correct 59 ms 9864 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 356 ms 74116 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 484 ms 48888 KB Output is correct
31 Correct 498 ms 48960 KB Output is correct
32 Correct 528 ms 86140 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 531 ms 86096 KB Output is correct
35 Correct 514 ms 86052 KB Output is correct
36 Correct 520 ms 86236 KB Output is correct
37 Correct 617 ms 86132 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 50 ms 9796 KB Output is correct
40 Correct 51 ms 9856 KB Output is correct
41 Correct 51 ms 9760 KB Output is correct
42 Correct 52 ms 9776 KB Output is correct
43 Correct 49 ms 9796 KB Output is correct
44 Correct 52 ms 9744 KB Output is correct
45 Correct 50 ms 9848 KB Output is correct
46 Correct 54 ms 9852 KB Output is correct
47 Correct 51 ms 9740 KB Output is correct
48 Correct 58 ms 9848 KB Output is correct
49 Correct 56 ms 9800 KB Output is correct
50 Correct 67 ms 9832 KB Output is correct
51 Correct 549 ms 86036 KB Output is correct
52 Correct 504 ms 86076 KB Output is correct
53 Correct 628 ms 86056 KB Output is correct
54 Correct 57 ms 9792 KB Output is correct
55 Correct 46 ms 9744 KB Output is correct
56 Correct 144 ms 34780 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 56 ms 9052 KB Output is correct
59 Correct 56 ms 9136 KB Output is correct
60 Correct 615 ms 49140 KB Output is correct
61 Correct 59 ms 9156 KB Output is correct
62 Correct 55 ms 9188 KB Output is correct
63 Correct 55 ms 9148 KB Output is correct
64 Correct 62 ms 9128 KB Output is correct
65 Correct 52 ms 9156 KB Output is correct
66 Correct 57 ms 9212 KB Output is correct
67 Correct 58 ms 9080 KB Output is correct
68 Correct 49 ms 9160 KB Output is correct
69 Correct 58 ms 9796 KB Output is correct
70 Correct 632 ms 85992 KB Output is correct
71 Correct 57 ms 9748 KB Output is correct
72 Correct 504 ms 86064 KB Output is correct
73 Correct 515 ms 86004 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 0 ms 212 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 0 ms 212 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 6 ms 1496 KB Output is correct
80 Correct 650 ms 85884 KB Output is correct
81 Correct 660 ms 85996 KB Output is correct
82 Correct 610 ms 86016 KB Output is correct
83 Correct 589 ms 85968 KB Output is correct
84 Correct 617 ms 85972 KB Output is correct
85 Correct 599 ms 86096 KB Output is correct
86 Correct 153 ms 34740 KB Output is correct
87 Correct 1 ms 212 KB Output is correct