... ( ) 2 10 5 2 20 2 40 80 29 29 149 20 1(mod1000); 29 20 1 401(mod1000); 29 801(mod1000) ;29 601(mod1000);= ≡ ≡≡ ≡≡ ≡ 100 20 80 29 29 29 401 601 1(mod1000);= ì ì ( ) 20 20 00 100 20 20 06 20 00 ... (9,7461 121 58; 3, 29 8444863),( 3, 028 16344;1,81 126 5376)DE−− 0,5 7 1 1 12, 1 022 0354 6,544304801 2 239,60 025 435DAEDAES AD AES= ì × ×≈ 0,5 2 Thi gian ca l trình: ( ) 2 216 ,26 25 ,86( ... 0 25 ,868 12 x xf x x+ −= + < < 0,5 2 2 2 23 2 16 ,26 2 16 ,26 '( ) 0 14,543386135 24 16, 26 x xf x xx + ì= = = + 1,0 8 min3,669936055 ( )t s≈ 0,5 2 Gán 1; 2; ...