Submission #209093

#	Time	Username	Problem	Language	Result	Execution time	Memory
209093		blacktulip	Baloni (COCI15_baloni)	C++17	100 / 100	466 ms	10872 KiB

baloni

#include <bits/stdc++.h>

using namespace std;

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

#define fi first
#define se second
#define int long long
#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 = 1000000000;
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;
map<int,int> mpp;
vector<int> v;

main(void){
	scanf("%lld",&n);
	FOR{
		scanf("%lld",&a[i]);
	}
	reverse(a+1,a+n+1);
	FOR{
		mpp[a[i]]++;
		if(mpp[a[i]-1])
		mpp[a[i]-1]--;
	}
	FOR{
		//~ cout<<mpp[a[i]]<<endl;
		cev+=mpp[a[i]];
		mpp[a[i]]=0;
	}
	printf("%lld\n",cev);
	return 0;
}

Compilation message (stderr)

baloni.cpp:32:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void){
          ^
baloni.cpp: In function 'int main()':
baloni.cpp:33:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
baloni.cpp:35:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a[i]);
   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 100 / 100