FlandreScarle7/Codeforces-SolutionsA
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added 1920A & B

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ShazidMahsrafi 2024-01-14 20:15:58 +06:00
parent 2112a74d2a
commit 8f06aca852
3 changed files with 182 additions and 0 deletions
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84
Codes/19020 B - Summation Game/1920B.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
#define FAST_IO (ios_base:: sync_with_stdio(false),cin.tie(NULL));
#define int long long
#define ll long long
#define ull unsigned long long
#define endl '\n'
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl
#define neg1 cout<<-1<<endl
#define PI 3.141592653589793238
#define MIN INT_MIN
#define MAX INT_MAX
#define INF LONG_LONG_MAX
#define MOD 1000000007
#define LLM 1000000000000000007
ll factorial(ll n) { if(n==0) return 1; ll res = 1; for (ll i = 2; i <= n; i++) res = res * i; return res; }
ll nPr(ll n, ll r) { return factorial(n) / factorial(n - r); }
ll nCr(ll n, ll r) { return factorial(n) / (factorial(r) * factorial(n - r));}
ll gcd(ll a, ll b) { if (b == 0) return a; return gcd(b, a % b); }
ll lcm(ll a, ll b) { return (a * b) / gcd(a, b);}
ull mypow(ull a, ull b) { ull ans = 1; a%=MOD; while(b){ if (b&1) ans = (ans*a) % MOD; a = (a*a) % MOD; b >>= 1; } return ans; }
bool isPrime(ll n) { if(n <= 1) return false; for(ll i = 2; i*i <= n; i++) if(n % i == 0) return false; return true; }
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; _print(x); cerr << endl;
#define dbgin(x) cerr << #x <<" "; _print(x); cerr << ";"<<endl;
#else
#define dbg(x)
#define dbgin(x)
#endif
void _print(int t) {cerr << t;}void _print(string t) {cerr << t;}void _print(char t) {cerr << t;}
void _print(long double t) {cerr << t;}void _print(double t) {cerr << t;}void _print(unsigned ll t) {cerr << t;}
template <class T, class V> void _print(pair <T, V> p);
template <class T> void _print(vector <T> v);template <class T> void _print(set <T> v);
template <class T, class V> void _print(map <T, V> v);template <class T> void _print(multiset <T> v);
template <class T, class V> void _print(pair <T, V> p) {cerr << "{"; _print(p.first); cerr << ","; _print(p.second); cerr << "}";}
template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(unordered_set <T> v) {cerr<<"[ "; for(T i : v) {_print(i); cerr<<" ";} cerr<<"]";}
template <class T, class V> void _print(map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void _print(multimap <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void _print(unordered_map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void solve()
{
int n,k,x;
cin>>n>>k>>x;
vector<int>v(n+1,0),pre(n+1,0);
for(int i=1; i<=n; ++i)
cin>>v[i];
sort(all(v));
for(int i=1; i<=n; ++i)
pre[i]=pre[i-1]+v[i];
int ans=MIN;
for(int i=n; i>=n-k; --i)
{
int r = min(i,x);
ans=max(ans,2*pre[i-r]-pre[i]);
}
cout<<ans<<endl;
}
int32_t main()
{
FAST_IO;
int TC = 1;
cin >> TC;
while (TC--)
solve();
}

96
Codes/1920 A - Satisfying Constraints/1920A.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
#define FAST_IO (ios_base:: sync_with_stdio(false),cin.tie(NULL));
#define int long long
#define ll long long
#define ull unsigned long long
#define endl '\n'
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl
#define neg1 cout<<-1<<endl
#define PI 3.141592653589793238
#define MIN INT_MIN
#define MAX INT_MAX
#define INF LONG_LONG_MAX
#define MOD 1000000007
#define LLM 1000000000000000007
ll factorial(ll n) { if(n==0) return 1; ll res = 1; for (ll i = 2; i <= n; i++) res = res * i; return res; }
ll nPr(ll n, ll r) { return factorial(n) / factorial(n - r); }
ll nCr(ll n, ll r) { return factorial(n) / (factorial(r) * factorial(n - r));}
ll gcd(ll a, ll b) { if (b == 0) return a; return gcd(b, a % b); }
ll lcm(ll a, ll b) { return (a * b) / gcd(a, b);}
ull mypow(ull a, ull b) { ull ans = 1; a%=MOD; while(b){ if (b&1) ans = (ans*a) % MOD; a = (a*a) % MOD; b >>= 1; } return ans; }
bool isPrime(ll n) { if(n <= 1) return false; for(ll i = 2; i*i <= n; i++) if(n % i == 0) return false; return true; }
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; _print(x); cerr << endl;
#define dbgin(x) cerr << #x <<" "; _print(x); cerr << ";"<<endl;
#else
#define dbg(x)
#define dbgin(x)
#endif
void _print(int t) {cerr << t;}void _print(string t) {cerr << t;}void _print(char t) {cerr << t;}
void _print(long double t) {cerr << t;}void _print(double t) {cerr << t;}void _print(unsigned ll t) {cerr << t;}
template <class T, class V> void _print(pair <T, V> p);
template <class T> void _print(vector <T> v);template <class T> void _print(set <T> v);
template <class T, class V> void _print(map <T, V> v);template <class T> void _print(multiset <T> v);
template <class T, class V> void _print(pair <T, V> p) {cerr << "{"; _print(p.first); cerr << ","; _print(p.second); cerr << "}";}
template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(unordered_set <T> v) {cerr<<"[ "; for(T i : v) {_print(i); cerr<<" ";} cerr<<"]";}
template <class T, class V> void _print(map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void _print(multimap <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void _print(unordered_map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void solve()
{
int n;
cin>>n;
vector<int>v;
int mn=0,mx=MAX;
for(int i=0; i<n; ++i)
{
int t,x;
cin>>t>>x;
if(t==1)
mn=max(mn,x);
else if(t==2)
mx=min(mx,x);
else
v.pb(x);
}
int ans=mx-mn;
if(ans<0)
{
cout<<0<<endl;
return;
}
for(auto ele:v)
{
if(ele>=mn && ele<=mx)
ans--;
}
cout<<ans+1<<endl;
}
int32_t main()
{
FAST_IO;
int TC = 1;
cin >> TC;
while (TC--)
solve();
}

2
Readme.md
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@ -239,6 +239,8 @@ This repository contains my solutions of Codeforces problems. They are in C++ la
| 227 | 1917 B | Erase First or Second Letter | [Question](https://codeforces.com/problemset/problem/1917/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1917%20B%20-%20Erase%20First%20or%20Second%20Letter)
| 228 | 1919 A | Wallet Exchange | [Question](https://codeforces.com/problemset/problem/1919/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1919%20A%20-%20Wallet%20Exchange)
| 229 | 1919 B | Plus-Minus Split | [Question](https://codeforces.com/problemset/problem/1919/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1919%20B%20-%20Plus-Minus%20Split)
| 230 | 1920 A | Satisfying Constraints | [Question](https://codeforces.com/problemset/problem/1920/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1920%20A%20-%20Satisfying%20Constraints)
| 231 | 19020 B | Summation Game | [Question](https://codeforces.com/problemset/problem/19020/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/19020%20B%20-%20Summation%20Game)