Some Solutions to the Problem:
Here is Milos Vukovic's complete list:
1 2-0-2/2
2 2+0*22
3 2+0+2/2
4 2+0*2+2
5 20/(2+2)
6 2+0+2+2
7 2+0!+2+2
8 2*0!*2*2
9 20/2-[sqrt(2)]
10 2^(0!+2)+2
11 20/2+[sqrt(2)]
12 20/2+2
13 [sqrt(202)]-[sqrt(2)]
14 ((2+0!)!)*2+2
15 [sqrt(202)]+[sqrt(2)]
16 [sqrt(20)]^([sqrt(2)]+[sqrt(2)])
17 [sqrt(20)]^2+[sqrt(2)]
18 20-[sqrt(2)]-[sqrt(2)]
19 20-2/2
20 20-2+2
21 20+2/2
22 20+[sqrt(2)]+[sqrt(2)]
23 20+[sqrt(2)]+2
24 20+2+2
25 (2+0!+2)^2
26 (2+0!*2)!+2
27 (2+0!)^(2+[sqrt(2)])
28 [sqrt(202)]*2
29 [sqrt(sqrt(sqrt(sqrt(20!))))]*2+[sqrt(2)]
30 [sqrt(sqrt(sqrt(sqrt(20!))))]*2+2
31 [sqrt(sqrt(sqrt(sqrt(sqrt((20*([sqrt(2)]+[sqrt(2)]))!)))))]
32 2^(0!+2+2)
33 [sqrt(sqrt(sqrt(sqrt(sqrt((20*2)!)))))]+2
34 ((2+0!)!)^2-2
35 ((2+0!)!)^2-[sqrt(2)]
36 (2+0!)!*(2+[sqrt(2)])!
37 [sqrt((((2+0!)!)!)*2-2)]
38 (20-[sqrt(2)])*2
39 20*2-[sqrt(2)]
40 20*2*[sqrt(2)]
41 20*2+[sqrt(2)]
42 20*2+2
43 [sqrt(sqrt(sqrt(sqrt([sqrt(((2+0!)!)!)]!))))]-2-[sqrt(2)]
44 [sqrt(sqrt(sqrt(sqrt([sqrt(((2+0!)!)!)]!))))]-[sqrt(2)]-[sqrt(2)]
45 [sqrt(sqrt(sqrt(sqrt([sqrt(((2+0!)!)!)]!))))]-2/2
46 [sqrt(sqrt(sqrt(sqrt([sqrt(((2+0!)!)!)]!))))]-2+2
47 [sqrt(sqrt(sqrt(sqrt([sqrt(((2+0!)!)!)]!))))]+2/2
48 [sqrt(sqrt(sqrt(sqrt([sqrt(((2+0!)!)!)]!))))]+[sqrt(2)]+[sqrt(2)]
49 [sqrt(sqrt(sqrt(sqrt([sqrt(((2+0!)!)!)]!))))]+2+[sqrt(2)]
50 [sqrt(((2+0!)!)!)]*2-2
51 [sqrt(((2+0!)!)!)]*2-[sqrt(2)]
52 [sqrt(((2+0!)!)!)]*([sqrt(2)]+[sqrt(2)])
53 [sqrt(((2+0!)!)!)]*2+[sqrt(2)]
54 [sqrt(((2+0!)!)!)]*2+2
55 [(sqrt(((2+0!)!)!)+sqrt(sqrt(sqrt(2))))*2]
56 [sqrt(((2+0!)!)!)+2]*2
57 [(sqrt(((2+0!)!)!)+2)*2]
58 [sqrt(((2+0!)!)!)*2*sqrt(sqrt(sqrt(2)))]
59 [sqrt(((2+0!)!)!*sqrt((2+2)!))]
60 ((2+0!+2)!)/2
61 [sqrt(((2+0!)!)!)*(sqrt(sqrt(sqrt(2)))+sqrt(sqrt(2)))]
62 2^((0!+2)!)-2
63 2^((0!+2)!)-[sqrt(2)]
64 2^((0!+2)*2)
65 2^((0!+2)!)+[sqrt(2)]
66 2^((0!+2)!)+2
67 [sqrt(((2+0!)!)!)*(sqrt(sqrt(sqrt(2)))+sqrt(2))]
68 [20*(2+sqrt(2))]
69 [(20^sqrt(2))*[sqrt(2)]]
70 [(20^sqrt(2))+sqrt(2)]
71 [(20^sqrt(2))+2]
72 (2+0!)*((2+2)!)
73 [sqrt(sqrt((((2+0!)!)*2)!))/2]
74 [(20+[sqrt(2)])^sqrt(2)]
75 [20^(sqrt(2))*sqrt(sqrt(sqrt(2)))]
76 [(20+sqrt(2))^sqrt(2)]
77 [sqrt(((((2+0!)!)+[sqrt(2)])!)*sqrt(sqrt(2)))]
78 [sqrt(((2+0!)!)!)]*(2+[sqrt(2)])
79 [(20+2)^sqrt(2)]
80 20*(2+2)
81 (2+0!)^(2+2)
82 [sqrt(sqrt(sqrt(20!)))/([sqrt(2)]+sqrt(2))]
83 [sqrt(sqrt(sqrt(20!)))/2/sqrt(sqrt(2))]
84 [((2+0!+2)!)/sqrt(2)]
85 [2^([sqrt(sqrt(((0!+2)!)!))]+sqrt(2))]
86 [[sqrt(sqrt(sqrt(20!)))]/(sqrt(sqrt(sqrt(2)))+sqrt(sqrt(2)))]
87 [sqrt(sqrt(sqrt(20!)))/(sqrt(sqrt(sqrt(2)))+sqrt(sqrt(2)))]
88 [(20*sqrt(sqrt(2)))^sqrt(2)]
89 [sqrt(sqrt(sqrt(20!)))/sqrt(sqrt((2+2)!))]
90 [(2^((0!+2)!))*sqrt(2)]
91 [sqrt(sqrt(sqrt(20!)))/2/sqrt(sqrt(sqrt(2)))]
92 [[sqrt(sqrt(sqrt(20!)))]/(sqrt(sqrt(sqrt(2)))+sqrt(sqrt(sqrt(sqrt(2)))))]
93 [(sqrt(((2+0!)!)!)-2)^sqrt(2)]
94 [[sqrt(sqrt(sqrt(20!)))]/2/sqrt(sqrt(sqrt(sqrt(2))))]
95 [sqrt(sqrt(sqrt(20!)))/2/sqrt(sqrt(sqrt(sqrt(2))))]
96 [sqrt(20)]!*2*2
97 [sqrt(sqrt(sqrt(20!)))/2/sqrt(sqrt(sqrt(sqrt(sqrt(2)))))]
98 [sqrt(sqrt(sqrt(20!)))/2/sqrt(sqrt(sqrt(sqrt(sqrt(sqrt(2))))))]
99 [sqrt(sqrt(sqrt(20!)))/sqrt(2)/sqrt(2)]
100 [((2+0!+2)!)/sqrt(sqrt(2))]
Here is Ritwik Chaudhuri's complete list:
1=2×0+2÷2
2=(2+0+2)÷2
3=2+0+2÷2
4=2×0+2+2
5=(2+0!)!−(2÷2)
6=2+0+2+2
7=2+0!+2+2
8=(2+0)×(2+2)
9=(2+0!)!+2+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))
10=(2+0!)!+2+2
11=(2+0!)^2+2
12=20÷2+2
13=(2+0!)!×2+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))
14=(2+0!)!×2+2
15=𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(((2+0!)!)!)!)÷2+2
16=(2+0+2)^2
17=20−𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))−2
18=((2+0!)^2)×2
19=20−2÷2
20=−2+0+22
21=20+2÷2
22=2×0+22
23=20+2+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))
24=20+2+2
25=2+0!+22
26=2+(0+2+2)!
27=(2+0!)^(2+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))
28=(2+0!)!+22
29=𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(((2+0!)!)!))+2+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))
30=𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(((2+0!)!)!))+2+2
31=2−0!+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(((2+2)!)!)))))
32=2^(0!+2+2)
33=2+0!+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(((2+2)!)!)))))
34=((2+0!)!)^2-2
35=((2+0!)!)^2-int(sqrt(2))
36=(20−2)×2
37=((2+0!)!)^2+int(sqrt(2))
38=20×2−2
39=(20×2)−𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))
40=𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡((20+2)!)))))×2
41=(20×2)+𝑖𝑛𝑡(𝑠𝑞𝑟𝑡(2))
42=20×2+2
43=int(2×(0!+ 𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑠𝑞𝑟𝑡(𝑓𝑎𝑐𝑡𝑜𝑟𝑖𝑎𝑙(22)))))))
44=2×(0+22)
Here is Colin Bowey's complete list:
1 =(2*0)+(2/2)
2 =-20+22 = 2+0+2-2
3 =2+0!+2-2
4 =(2*0)+2+2
5 =20/(2+2)
6 =2+0+2+2
7 =2+0!+2+2
8 =(2+0)*2*2
9 =((2+0!)!/2)^2
10 =(2+0!+2)*2
11 =((2+0!)^2)+2
12 =(20/2)+2
13 =((2+0!)!)*2)+INT(SQRT(2))
14 =((2+0!)!*2)+2
15 =INT(SQRT(((2+0!)!)!))/2)+2
16 =20-2-2
17 =20-2-INT(SQRT(2))
18 =((2+0!)^2)*2
19 = -(2+0!)+22
20 =20+2-2
21 =20+(2/2)
22 =(2*0)+22
23 =2-0!+22
24 =2+0+22 = (2+(0*2)+2)!
25 =((2+0!)+2)^2
26 =2+0+(2+2)!
27 =2+0!+(2+2)!
28 =(2+0!)!+22
29 = INT((SQRT(((2+0!)!)!))/SQRT(SQRT(SQRT(2))))*SQRT(SQRT(2)))
30 =(2+0!)!+(2+2)!
31 =INT((SQRT(2)+0)*22)
32 =(2^(0!+2+2))
33 = INT(SQRT(((2+0!)!)!*SQRT(2))+2)
34 =((2+0!)!^2)-2
35 = ((2+0!)!^2)-INT(SQRT(2))
36 = SQRT((2+0!)!^2^2)
37 = ((2+0!)!^2)+INT(SQRT(2))
38 =((2+0!)!^2)+2 = (20*2)-2 = INT(SQRT(2+FACT(0))*22)
39 = (20*2)-INT(SQRT(2))
40 = (20*2)/INT(SQRT(2)) = 20*SQRT(2*2)
41 = INT(SQRT(2+0!) * (2+2)!) = (20*2)+INT(SQRT(2))
42 = (20*2)+2
43 = INT(20*((SQRT(SQRT(SQRT(2))))+(SQRT(SQRT(SQRT(2))))))
44 = (2+0)*22 =[SQRT(2022)]
45 = [SQRT(SQRT((2+0)^22))]
46 = INT(SQRT(SQRT(SQRT(SQRT((((2+0)+(2+2)!)!))))))
47 = INT(20*(SQRT(SQRT(2))+SQRT(SQRT(2))))
48 =(2+0)*(2*2)!
49 = INT(SQRT(SQRT(SQRT(FACT(20))))/(2+2))
50 = INT(SQRT(SQRT(SQRT(SQRT(SQRT(FACT((2+0)*22)))))))
51 = INT( ( SQRT ( ( (2+0!) ! ) ! ) ) *2 ) -2 )
52 = INT( ( SQRT ( ( (2+0!) ! ) ! ) ) *2 ) - SQRT(2) )
53 = INT(SQRT((2+0!)!)*22)
54 = INT(SQRT(SQRT(SQRT(SQRT(SQRT(SQRT(SQRT( (INT(SQRT(SQRT(SQRT(SQRT( ((SQRT(2)+0)*22)!))))))! ))))))))
55 = INT(SQRT(((2+0!)!)!)*2)+2
56 = INT(20*2*SQRT(2))
Here are some other answers:
0 = 2 * 0 * 22
or 2 x 0 x 2 x 2
1 = 2- 0! + 2 - 2
or (2*0)+(2/2)
or -2 - 0! + 2 + 2
2 = -20 + 22
or 2 * 0 * 2 + 2
3 = 2 + 0! + 2 - 2
or (2^0)^2 + 2
or -2 + 0! + 2 + 2
4 = 2 * 0 + 2 * 2
or (2*0)+2+2
5 = 2 ^ 0 + 2 * 2
or 20/(2+2)
or 20 / ( 2+ 2)
or 20 / 2^2
6 = 2 + 0 + 2 + 2
or 2 (-0! + 2 + 2 )
7 = 2 + 0! + 2 + 2
or [ sqrt(202)] / 2
8 = (2 + 0) * (2 + 2)
or (2+0)*2*2
or 20 / 2 - 2
or 2 * 0! * 2 * 2
9 = (2 - 0! + 2) ^ 2
or ((2+0!)!/2)^2
or int[sqrt(20) + sqrt(22)]
10 = [ sqrt(20)] * 2 + 2
or (2+0!+2)*2
or 2 (0! + 2 + 2)
11 = [ sqrt(202 / sqrt(2)) ]
or ((2+0!)^2)+2
or (20+2) / 2
12 = (2 + 0!) * (2 + 2)
or (20/2)+2
or int (sqrt(202)) - 2
13 = [sqrt(202)] - [sqrt(2)]
or ((2+0!)!)*2)+int(sqrt(2))
or int(sqrt{(sqrt 2)*(0!+2+2) !)})
14 = [sqrt(20)]! / 2 + 2
or ((2+0!)!*2)+2
or [sqrt(sqrt(sgrt(sqrt(20!))))] + 2 - 2
15 = [20 - sqrt((2 * 2)!)]
or int(sqrt(((2+0!)!)!))/2)+2
or [20 - sqrt(22)]
or [sqrt{ 2*(0!+2+2) !}]
or [sqrt(sqrt(sgrt(sqrt(20!))))] + 2 - [sqrt(2)]
16 = 20 - 2 - 2
or (2 + 0 + 2)^2
17 = [20 - (sqrt(sqrt((2 + 2)!)))]
or 20-2-int(sqrt(2))
or [sqrt(20) * 2 * 2]
or 20 - 2 - [sqrt(2)]
18 = 20 - sqrt(2 * 2)
or ((2+0!)^2)*2
or (sqrt(20))^2 - 2
or [sqrt(20)]^2 + 2
or 20 - [sqrt(2)] - [sqrt(2)]
19 = 20 - ((2 - 2)!)
or -(2+0!)+22
or 20-2/2
or 20 + 2 - [sqrt(2)]
20 = 20 + 2 - 2
21 = -2 + 0! + 22
or 20+(2/2)
or 20 + 2 - [sqrt(2)]
22 = 2 * 0 + 22
or (2 + 0 + 2)! - 2
23 = 2 - 0! + 22
or 2^0 + 22
or 20 + 2 + [sqrt(2)]
24 = 20 + 2 + 2
or 2 + 0 + 22
25 = 2 + 0! + 22
or ((2+0!)+2)^2
or (2 + 0 + 2)! + [sqrt(2)]
26 = [20 * sqrt(2)] - 2
or 2+0+(2+2)!
or (2 + 0 + 2)! + 2
27 = 2 + 0! + (2 + 2)!
or [sqrt((2^0 + 2)!)!] + [sqrt(2)]
28 = (2 + 0!)! + 22
or [sqrt(202)] * 2
29 = [sqrt(((2 + 0!)!)!)] + 2 + [sqrt(2)]
30 = (2 + 0!)! + (2 +2 )!
or [sqrt(((2 + 0!)!)!)] + 2 + 2
31 = int((sqrt(2)+0)*22)
32 = (2^(0!+2+2))
33 = int(sqrt(((2+0!)!)!*sqrt(2))+2)
34 = ((2+0!)!^2)-2
35 = ((2+0!)!^2)-int(sqrt(2))
36 = sqrt((2+0!)!^2^2)
37 = ((2+0!)!^2)+int(sqrt(2))
38 = ((2+0!)!^2)+2
or (20*2)-2
39 = (20*2)-int(sqrt(2))
40 = (20*2)/int(sqrt(2))
or 20*sqrt(2*2)
41 = int(sqrt(2+0!) * (2+2)!)
or (20*2)+int(sqrt(2))
42 = (20*2)+2
43 = int(20*((sqrt(sqrt(sqrt(2))))+
(sqrt(sqrt(sqrt(2))))))
44 = (2+0)*22
or [sqrt(2022)]
45 = [sqrt(sqrt((2+0)^22))]
46 = int(sqrt(sqrt(sqrt(sqrt((((2+0)+
(2+2)!)!))))))
47 = int(20*(sqrt(sqrt(2))+sqrt(sqrt(2))))
48 = (2+0)*((2*2))!
49 = int(sqrt(sqrt(sqrt((20)!)))/4)
50 = int(sqrt(sqrt(sqrt(sqrt(sqrt(
((2+0)*22)!))))))