Submission #256860

#	Time	Username	Problem	Language	Result	Execution time	Memory
256860		blacktulip	Bigger segments (IZhO19_segments)	C++17	0 / 100	1 ms	384 KiB

segments

#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include <bits/stdc++.h>

using namespace std;

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

#define fi first
#define se second
#define mp make_pair
#define endl "\n"
#define int long long
#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 inf = 1000000000000000000;
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]);
	}
	int last=a[1];
	int crt=0;
	int ans=1;
	int ind=2;
	for(int i=2;i<=n;i++){
		crt+=a[i];
		if(crt>=last){
			while(a[ind]+last<=crt-a[ind]){
				crt-=a[ind];
				last+=a[ind];
				ind++;
			}
			last=crt;
			ind=i+1;	
			crt=0;
			ans++;
		}
	}
	printf("%lld\n",ans);
	return 0;
}

Compilation message (stderr)

segments.cpp:33:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void){
          ^
segments.cpp: In function 'int main()':
segments.cpp:34:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
segments.cpp:36:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a[i]);
   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27