GIÚP MÌNH VỚI Ạ Dùng thuật toán tìm giá trị lớn nhất: Cho N=6, a1 = 8, a2=9, a3=2, a4=1, a5=0, a6=7. Sau bao nhiêu lần duyệt thì tìm được giá trị lớn nhất ? A.6 B.5 C.4 D.3
Tìm giá trị lớn nhất của tổng;
B=|a1-a2|+|a2-a3|+|a3-a4|+|a4-a5|+|a5-a1|
Biết rằng a1;a2;a3;a4;a5 là các dố tự nhiên từ 1 đến 5.
Các bạn cho mình câu trả lời ngay hôm nay nhé!!!
Cảm ơn
Mình xin lỗi viết nhầm số thành dố
Các bạn nào biết làm thì chỉ hộ mình nhé
Mai 5h sáng mình đã cần rùi
Cảm ơn
giúp e vs ạ
biểu thức sau trả lại giá trị bao nhiêu các ô ( a1;a2;a3;a4;a5 đều có giá trị là số 3) ? =sum ( a1:a5)
em hãy mô phỏng thuật toán cho dãy số sau( N=5)
a1=6; a2=9;a3=11;a4= -4;a5=8
Đề yêu cầu thực hiện công việc gì với dãy số đó vậy bạn
Cho dãy số nguyên với N=3 và dãy số nguyên a1=4, a2=6, a3=9. Tìm giá trị lớn nhất của dãy số.
#include <bits/stdc++.h>
using namespace std;
long long n,i,x,max;
int main()
{
cin>>n;
cin>>x;
max=x;
for (i=1; i<n; i++)
{
cin>>x;
if (max<=x) max=x;
}
cout<<max;
return 0;
}
Cho 2016 số a1;a2;a3;...;a2016 mà mỗi số bằng 1 hoặc -1. Hỏi tổng S=a1-a2+a3-a4+a5-a6+....+a2015-a2016 có thể nhận bao nhiêu giá trị khác nhau
giúp mk với nhanh ạ (vote 5* cảm ơn và bài hay nhất cho ạ)
Cm:
\(a1^2+a2^2+a3^2+a4^2+a5^2\)+1 ≥ a1(a2+a3+a4+a5+1) ∀ a1,a2,a3,a4,a5
Bài này sai đề . Lấy \(a_1=2;a_2=a_3=a_4=a_5=1\) thay vào thì :
\(VT=2^2+1^2.4+1=9\) ; \(VP=2\left(1.4+1\right)=10\) \(\Rightarrow VT< VP\) \(\Rightarrow\) Vô Lí
\(a_1+a_2+a_3+a_4+a_5+a_6+a_7=0\left(1\right)\)
\(a_1+a_2=a_3+a_4=a_5+a_6=a_1+a_7=1\left(2\right)\)
Thay (2) vào (1) :
\(1+1+1+a_7=0\)
\(\Rightarrow a_7=-3\)
\(a_1=1-a_7=1--3=4\)
\(a_2=1-a_1=1-4=-3\)
Chúc bạn học tốt !!!
10. Cho n số a1, a2, a3, a4, a5,..., an và mỗi số = 1 hoặc -1. CMR Sn = a1.a2 + a2.a3 + a3.a4 + a4.a5 + a5.a6 +...+ an.a1 = 0 khi và chỉ khi n ⋮ 4.
Gíup mình với mình đang cần gấp!
Cảm ơn mn nhiều!
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