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    Thursday, December 31, 2020

    Different CPU Times: Unix/Linux ‘top’ Computer Science

    Different CPU Times: Unix/Linux ‘top’ Computer Science


    Different CPU Times: Unix/Linux ‘top’

    Posted: 30 Dec 2020 11:03 PM PST

    What's the difference between a ternary computer and a quantum computer?

    Posted: 30 Dec 2020 10:25 AM PST

    A ternary computer will have three values (I've always been particularly fond of -1, 0, and 1) instead of two like in binary.

    A quantum computer (from what I understand so far) will also have three values: 1, 0, and simultaneous occurrence of 0 and 1.

    So what's the difference? Why can't we just build a ternary computer and say for example, that -1 will represent the simultaneous occurrence of 0 and 1?

    submitted by /u/ImFromRwanda
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    Why can't my array stack program for Valid Parentheses output anything?

    Posted: 31 Dec 2020 12:21 AM PST

    just check [] for now

    #include<stdio.h> #include<stdlib.h> int top=0; #define size 5 char stack[size]; int push(char value){ if(top<size){ stack[top]=value; top++; return 0; }else{ return -1; } } char pop(){ char k; if(top>0){ top--; k=stack[top]; return k; }else{ return -1; } } int main(){ int i; char str[]="()[}"; for(i=0;i<4;i++){ if(str[i]=='('||str[i]=='['||str[i]=='{'){ push(str[i]); }else if(str[i]==']'){ if(pop()!='['){ printf("Wrong"); break; } } } } 
    submitted by /u/JacksonSteel
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    [D] 2020 in Review: 10 AI-Powered Tools Tackling COVID-19

    Posted: 30 Dec 2020 02:11 PM PST

    Over 82 million people have been infected worldwide, and the number of new COVID-19 cases has continued to climb in recent months. As we anxiously await vaccines, artificial intelligence is already battling the virus on a number of fronts — from predicting protein structure and diagnosing patients to automatically disinfecting public areas.

    As part of our year-end series, Synced highlights 10 AI-powered efforts that contributed to the fight against COVID-19 in 2020.

    - AlphaFold

    - Diagnosing COVID-19 Infection in Seconds

    - COVID-19 Open Research Dataset Challenge

    - Folding@Home

    - COVID-Net

    ...

    Read more: 2020 in Review: 10 AI-Powered Tools Tackling COVID-19

    submitted by /u/Yuqing7
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    Are the spanning forests created by DFS and by BFS solutions to some graph optimization problems?

    Posted: 30 Dec 2020 10:55 AM PST

    In depth first search (preorder or postorder) and breadth first search, spanning forests of the original graph are created.

    Are the spanning forests created by DFS (preorder or postorder) and by BFS satisfy some optimum goal, i.e. are they solutions to some graph optimization problems?

    Are the spanning forests created by DFS (preorder or postorder) and by BFS minimum ones?

    Thanks.

    submitted by /u/timlee126
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