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I have to get numbers from file and some of them are negative. So, how can I do that? (C++)
Now I'm trying just this (without something special):
U1.txt file:
4 5 -1 6 -2
My code:
ifstream fd(FD);
int n1,n2,n3,n4,n5;
fd>>n1>>n2>>n3>>n4>>n5;
Your code is basically correct, except for that typo with n4 missing.
This:
ifstream fd("U1.txt");
int n1,n2,n3,n4,n5;
fd>>n1>>n2>>n3>>n4>>n5;
Will do what you expect, modulo error conditions.
Related
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Closed 3 days ago.
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How to change comma to period when typing double number in TextField?
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Closed 2 years ago.
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Why does below command highlight e as well with digits?
grep '[[:xdigit:]]' search.txt
This is intended, as it searches for hexadecimal digits.
The man-page states:
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Closed 6 years ago.
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I need to capture cpu usage data from this string, in this cast cpu usage is 1.55. Values between - and %
cpu<-c("CPU Usage: u814.13 s13.33 cu0 cs0 - 1.55% CPU load")
I have tried this:
as.numeric(gsub("^.*- ([0-9]+).*$", "\\1", cpu))
It is giving 1.
Any ideas what I'm doing wrong here?
([\d\.]+)% CPU.*$
You didn't include the decimal dot in the square brackets
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I think I saw something on using this to truncate test as a filter, but I've seen to no idea how to use it. Using as xx|do_trucate(20) gives the following:
TemplateAssertionError: no filter named 'do_truncate'
What is the correct usage?
Doh, from the spec I saw
do_trucate
http://code.nabla.net/doc/jinja2/api/jinja2/jinja2.filters.html
But in reality, its just truncate
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Closed 8 years ago.
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i want to print a Sequential that decreased by 5
using a for loop
but i don't know why it doesn't print the output :(
#include<bits/stdc++.h>
using namespace std;
int main(){
for(int j=60;j<=0;j-=5){
cout<<j<<endl;
}
}
whats the wrong?!
Change it to
for(int j=60;j>=0;j-=5){
^^