oj.uz

Submission #880212

# Submission time Handle Problem Language Result Execution time Memory
880212 2023-11-29T03:16:07 Z ReLice Art Exhibition (JOI18_art) C++14
0 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
#define ll long long
#define str string
#define ins insert
#define ld long double
#define pb push_back
#define pf push_front
#define pof pop_front()
#define pob pop_back()
#define lb lower_bound
#define ub upper_bound
#define endl "\n"
#define fr first
#define sc second
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
//#define sz size()
#define bc back()
#define ar array
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template <class _T>
bool chmin(_T &x, const _T &y){
    bool flag=false;
    if(x>y){
        x=y;flag|=true;
    }
    return flag;
}
template <class _T>
bool chmax(_T &x, const _T &y){
    bool flag=false;
    if (x<y){
        x=y;flag|=true;
    }
    return flag;
}
#define ordered_set tree<ll, null_type,less_equal<ll>, rb_tree_tag,tree_order_statistics_node_update>
void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
void start(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}
const ll inf=1e18+7;
const ll mod=998244353;
const ll N=2e5+7;
const ld eps=1e-9;

void solve(){
	ll i;
	ll n,m;
	ll a,b;
	cin>>n;
	deque<pair<ll,ll>> v(n);
	for(i=0;i<n;i++) cin>>v[i].fr>>v[i].sc;
	sort(all(v));
	v.pf({0,0});
	ll pref[n+5];
	pref[0]=0;
	for(i=1;i<=n;i++)
        pref[i]=pref[i-1]+v[i].sc;
	for(i=1;i<=n;i++)
        pref[i]=pref[i]-v[i].fr+v[1].fr;
    ll ans=0,mn=inf;
    for(i=1;i<=n;i++){
        ans=max(ans,pref[i]);
        if(mn<0)ans=max(ans,pref[i]-mn);
        mn=min(mn,pref[i]);
    }
    cout<<ans<<endl;
}
signed main(){
	//start();
    ll t=1;
	//cin>>t;
    while(t--) solve();
    return 0;
}
/*







*/

Compilation message

art.cpp: In function 'void solve()':
art.cpp:54:7: warning: unused variable 'm' [-Wunused-variable]
   54 |  ll n,m;
      |       ^
art.cpp:55:5: warning: unused variable 'a' [-Wunused-variable]
   55 |  ll a,b;
      |     ^
art.cpp:55:7: warning: unused variable 'b' [-Wunused-variable]
   55 |  ll a,b;
      |       ^
art.cpp: In function 'void fre(std::string)':
art.cpp:41:27: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 | void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:41:64: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 | void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                                                         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -