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add 2 image. 1 imahe image is answer. your answer is not correct as like me. this answer provide by my teacher. no need to explain as writing many thing description,just do codding by jupyternotebook python with julia , run,answer and sent screenshort to me

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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i add 2 image. 1 imahe image is answer. your answer is not correct as like me. this answer provide by my teacher.

no need to explain as writing many thing description,just do codding by jupyternotebook python with julia , run,answer and sent screenshort to me

Example: building a house A small sample: Let ti, to, tm, tn, tt, to be start times of the associated tasks. Now use the graph to write the dependency constraints: 0,3 FINISH $,2 CARPENTRY Source: HBR 1963 43 FINISH FLOORING m,1 VARNISH FLOORS KITCHEN FIXTURES n,2 13 PAINT FINISH PLUMBING • Tasks o, m, and n can't start until task / is finished, and task / takes 3 days to finish. So the constraints are: ti +3≤ to, t₁ + 3 ≤ tm, ti +3 ≤ tn . Task t can't start until tasks m and n are finished. Therefore: tm +1≤tt, tn + 2 ≤ tt, • Task s can't start until tasks o and t are finished. Therefore: to +3≤ts, tt + 3 ≤ ts 4-24
Transcribed Image Text:Example: building a house A small sample: Let ti, to, tm, tn, tt, to be start times of the associated tasks. Now use the graph to write the dependency constraints: 0,3 FINISH $,2 CARPENTRY Source: HBR 1963 43 FINISH FLOORING m,1 VARNISH FLOORS KITCHEN FIXTURES n,2 13 PAINT FINISH PLUMBING • Tasks o, m, and n can't start until task / is finished, and task / takes 3 days to finish. So the constraints are: ti +3≤ to, t₁ + 3 ≤ tm, ti +3 ≤ tn . Task t can't start until tasks m and n are finished. Therefore: tm +1≤tt, tn + 2 ≤ tt, • Task s can't start until tasks o and t are finished. Therefore: to +3≤ts, tt + 3 ≤ ts 4-24
In [17] value (tl) Out [17]: 0.0 In [18] value (to) Out [18] 5.0 : In [19] Out [19] value (tm) 4.0 In [20] value (tn) Out [20]: 3.0 In [21] value (tt) Out [21]: 5.0 In [22] value (ts) Out [22]: 8.0 In [23] objective_value (model) Out [23] 10.0 In [ ]:
Transcribed Image Text:In [17] value (tl) Out [17]: 0.0 In [18] value (to) Out [18] 5.0 : In [19] Out [19] value (tm) 4.0 In [20] value (tn) Out [20]: 3.0 In [21] value (tt) Out [21]: 5.0 In [22] value (ts) Out [22]: 8.0 In [23] objective_value (model) Out [23] 10.0 In [ ]:
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