Submission #1058547

#	Time	Username	Problem	Language	Result	Execution time	Memory
1058547		Mr_Husanboy	Bikeparking (EGOI24_bikeparking)	C++17	25 / 100	26 ms	4436 KiB

Main

//#pragma GCC optimize("Ofast,O3")
//#pragma GCC target("avx,avx2")
#include <bits/stdc++.h>
using namespace std;



#ifdef LOCAL
#include "debugger.cpp"
#else
#define debug(...)
#endif
template<class T>
int len(T &a){
    return a.size();
}

using ll = long long;
using pii = pair<int,int>;
#define all(a) (a).begin(), (a).end()
#define ff first
#define ss second
string fileio = "";

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const int MOD = 1e9 + 7;
const int inf = 1e9;
const ll infl = 1e18;
const int maxn = 1e5 + 1;





void yesno(bool ok){
    cout << (ok ? "Yes\n" : "No\n");
}


void solve(){
    int n; cin >> n;
    vector<int> t(n);
    for(int i = 0; i < n; i ++) cin >> t[i];
    vector<int> s(n);
    for(int j = 0; j < n; j ++) cin >> s[j];
    int ans = 0;
    
    for(int i = 0, j = 0; i < n; i ++){
        while(s[i] && j < i){
            int ad = min(t[j], s[i]);
            s[i] -= ad;
            ans += ad;
            t[j] -= ad;
            if(t[j] == 0) j ++;
        }
    }
    for(int i = 0, j = 0; i < n; i ++){
        while(s[i] && j <= i){
            int ad = min(t[j], s[i]);
            s[i] -= ad;
            t[j] -= ad;
            if(t[j] == 0) j ++;
        }
        ans -= s[i];
    }

    cout << ans;
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    auto start = chrono::high_resolution_clock::now();
    #ifndef LOCAL
    if(fileio.size()){
        freopen((fileio + ".in").c_str(), "r", stdin);
        freopen((fileio + ".out").c_str(), "w", stdout);
    }
    #endif
    int testcases = 1;
    #ifdef Tests
    cin >> testcases;
    #endif
    while(testcases --){
        solve();
        if(testcases) cout << '\n';
        #ifdef LOCAL
        else cout << '\n';
        cout << "_________________________" << endl;
        #endif
    }
    #ifdef LOCAL
    auto duration = chrono::duration_cast<chrono::microseconds>(chrono::high_resolution_clock::now() - start);
    
    cout << "time: " << (double)duration.count()/1000.0 << " milliseconds" << endl;
    #endif
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:72:10: warning: variable 'start' set but not used [-Wunused-but-set-variable]
   72 |     auto start = chrono::high_resolution_clock::now();
      |          ^~~~~
Main.cpp:75:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |         freopen((fileio + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:76:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |         freopen((fileio + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 9 / 9
• Subtask 3: 0 / 19
• Subtask 4: 0 / 24
• Subtask 5: 0 / 32