Submission #228883

#	Time	Username	Problem	Language	Result	Execution time	Memory
228883		blacktulip	Mean (info1cup19_mean)	C++17	0 / 100	5 ms	384 KiB

mean

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define int long long
#define se second
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 100000000000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 500005;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t;
int cev;
string s;
vector<int> v;

main(void){
	scanf("%lld",&n);
	FOR{
		scanf("%lld",&a[i]);
		v.pb(a[i]);
	}
	while(v.size()>1){
		int ind=0,mn=inf;
		for(int i=1;i<(int)v.size();i++){
			//~ cout<<v[i]+v[i-1]<<" : ; "<<mn<<endl;
			if(v[i]+v[i-1]<mn){ind=i;mn=v[i]+v[i-1];}
		}
		int at=v[ind]+v[ind-1];
		v[ind-1]=at/2;
		//~ cout<<ind<<endl;
		v.erase(v.begin()+ind);
	}
	//~ printf("%lld\n",(int)v.size());
	printf("%lld\n",v[0]);
	return 0;
}

Compilation message (stderr)

mean.cpp:31:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void){
          ^
mean.cpp: In function 'int main()':
mean.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
mean.cpp:34:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a[i]);
   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 70