Instructiunea repeat
Rezolvati intr-un singur program problemele propuse, daca la intrare se introduce numai o singura data un numar n>0, integer:
Calculati sumele
a) s1=1*2+2*3+3*4+...+(n-1)*n
b) s2=1+1*2+1*2*3+...+1*2*3*...*n
c) s3=12+22+32+42+...+n2
d) s4=21+22+23+24+...+2n
e) s5=-1+2-3+4-5+6-7+...+n
f) s6=1/2+2/3+3/4+4/5+...+n/(n+1)
indiciu:
s1..s5 puneti de tip longint s6:real
Termen de executie 22 ianuarie 2012, ora 20-00
Calculati sumele
a) s1=1*2+2*3+3*4+...+(n-1)*n
b) s2=1+1*2+1*2*3+...+1*2*3*...*n
c) s3=12+22+32+42+...+n2
d) s4=21+22+23+24+...+2n
e) s5=-1+2-3+4-5+6-7+...+n
f) s6=1/2+2/3+3/4+4/5+...+n/(n+1)
indiciu:
s1..s5 puneti de tip longint s6:real
Termen de executie 22 ianuarie 2012, ora 20-00