Submission #890416

#	Time	Username	Problem	Language	Result	Execution time	Memory
890416		Sir_Ahmed_Imran	Sails (IOI07_sails)	C++17	60 / 100	1095 ms	3540 KiB

sails

                              ///~~~LOTA~~~///
#include <bits/stdc++.h>
using namespace std;
#define nl '\n'
#define ff first
#define ss second
#define ll long long 
#define append push_back
#define all(x) (x).begin(),(x).end()
void solve(){
    ll n,m,o,p,q,r;
    cin>>n;
    vector<pair<ll,ll>> v;
    for(int i=0;i<n;i++){
        cin>>p>>q;
        v.append({p,q});
    }
    sort(all(v));
    vector<pair<ll,ll>> Q{{0,v[0].ff}};
    o=0;
    p=v[0].ff;
    vector<pair<ll,ll>> u;
    for(auto& i:v){
        if(i.ff>p){
            if(Q.back().ff==0)
                Q.back().ss+=i.ff-p;
            else Q.append({0,i.ff-p});
        }
        while(i.ss>=Q.back().ss){
            u.append(Q.back());
            i.ss-=u.back().ss;
            u.back().ff++;
            Q.pop_back();
        }
        if(i.ss){
            u.append({Q.back().ff,Q.back().ss-i.ss});
            u.append({Q.back().ff+1,i.ss});
            Q.pop_back();
        }
        while(!u.empty()){
            if(Q.empty()) Q.append(u.back());
            else if(Q.back().ff==u.back().ff)
                Q.back().ss+=u.back().ss;
            else Q.append(u.back());
            u.pop_back();
        }
        p=i.ff;
    }
    for(auto& i:Q)
        o+=(i.ss*i.ff*(i.ff-1))/2;
    cout<<o<<nl;
}
int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    solve();
    return 0;
}

Compilation message (stderr)

sails.cpp: In function 'void solve()':
sails.cpp:11:10: warning: unused variable 'm' [-Wunused-variable]
   11 |     ll n,m,o,p,q,r;
      |          ^
sails.cpp:11:18: warning: unused variable 'r' [-Wunused-variable]
   11 |     ll n,m,o,p,q,r;
      |                  ^

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 0 / 10
• Subtask 8: 10 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10