Submission #476962

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
476962	2021-09-29 12:05:54	David_M	Addk (eJOI21_addk)	C++14	100 / 100	236 ms	10464 KiB

Main

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#include <bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
#define pii pair<int, int>
#define FF first.first
#define FS first.second
#define pb push_back
using namespace std;
const ll N=1000006, INF=1e18, P=998244353;
ll q=1, n, m, x, y, z, l, r, k, t, a[N], b[N], f[N], ans, o, u, Ans[N];
pair<ll, ll> T[N];
void upd(int x, ll val, int v=1, int L=1, int R=n){
    int M=L+R>>1;
    if(L==R){T[v]={val,val*x};return;}
    if(x<=M)upd(x, val, v<<1, L, M);
    else    upd(x, val, v<<1|1, M+1, R);
    T[v]={T[v<<1].F+T[v<<1|1].F, T[v<<1].S+T[v<<1|1].S};
}
ll get(int l, int r, int v=1, int L=1, int R=n){
    if(R<l || L>r)return 0;
    if(L>=l && R<=r)return T[v].S-T[v].F*(l-1);
    int M=L+R>>1;
    return get(l, r, v<<1, L, M)+get(l, r, v<<1|1, M+1, R);
}
 
 
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Compilation message (stderr)

Main.cpp: In function 'void upd(int, long long int, int, int, int)':
Main.cpp:17:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   17 |     int M=L+R>>1;
      |           ~^~
Main.cpp: In function 'long long int get(int, int, int, int, int)':
Main.cpp:27:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |     int M=L+R>>1;
      |           ~^~
Main.cpp: At global scope:
Main.cpp:33:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   33 | main(){ios_base::sync_with_stdio(false), cin.tie(0);
      | ^~~~
Main.cpp: In function 'int main()':
Main.cpp:43:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   43 |             for (int i=0; i<k; i++)cin>>b[i];a[n+1]=a[b[0]];
      |             ^~~
Main.cpp:43:46: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   43 |             for (int i=0; i<k; i++)cin>>b[i];a[n+1]=a[b[0]];
      |                                              ^

• Subtask 1: 36 / 36
• Subtask 2: 56 / 56
• Subtask 3: 8 / 8