OJ Board

Posted: **Fri Nov 22, 2013 9:47 pm**

A blank line should separate each set of output.

Don't print an extra blank line at the end.

Posted: **Sun Nov 24, 2013 7:01 pm**

thanks brianfry713.

Posted: **Thu Jan 23, 2014 9:44 pm**

Input:

A
 B

AC output:

Code: Select all

Posted: **Fri Jan 24, 2014 7:25 am**

brianfry713 wrote:Input:
Code: Select all
A
 B
AC output:
Code: Select all
65 1

66 1
32 1

Thank you very much for this test case, brianfry713. I hadn't considered that there might be spaces before the alphabets or punctuation.

Posted: **Tue Feb 18, 2014 8:12 pm**

Can anybody please tell me what am I doing wrong here:

#include <iostream>
#include <cstdio>
#include <cstring>
#include <vector>
#include <algorithm>
using namespace std;

struct ascii_freq
{
int ascii;
int freq;
};

bool compare (const ascii_freq &a, const ascii_freq &b)
{
if(a.freq != b.freq)
return a.freq < b.freq;

return a.ascii > b.ascii;
}

int main()
{
// freopen("input.txt", "r", stdin);

bool firsttime = true;
char line[1001];
int i;
vector<ascii_freq> V;

while(gets(line))
{
if(!firsttime)
puts("\n");
int address[128];
int vindex = 0;
memset(address, -1, sizeof(address));

for(i=0; line!=0; i++)
{
if(address[line] == -1)
{
ascii_freq temp;
temp.ascii = line;
temp.freq = 1;
V.push_back(temp);
address[line] = vindex;
vindex++;
}
else
{
V[address[line]].freq++;
}
}
sort(V.begin(), V.end(), compare);
for(i=0; i<V.size(); i++)
{
printf("%d %d", V.ascii, V.freq);
if(i < V.size()-1)
puts("");
}

V.clear();
firsttime = false;
}
return 0;
}

Posted: **Tue Feb 18, 2014 9:51 pm**

Print a newline char at the end of the last line.

Posted: **Mon Mar 24, 2014 5:00 pm**

AC.........
tnx v1n1t

Posted: **Mon Mar 24, 2014 5:09 pm**

TLEorWA wrote:Why Runtime Error,what is the problem

Your code seg faults on the sample input. You might want to begin there.

Posted: **Thu Sep 25, 2014 3:00 pm**

whats wrong in my code?i got wrong answer

Code: Select all

#include <iostream>
#include <vector>
#include <map>
#include <algorithm>

using namespace std;

bool cmp(const pair<int, int>  &p1, const pair<int, int> &p2)
{
    return p1.second < p2.second;
}

int main()
{
	string n;
	int ascii[1001],i,j,m,l,temp,f=1;
	map <int, int> c;
	vector<pair<int, int> > v;
	std::map < int, int >::iterator it;
	while(getline(cin,n))
	{
		l=n.length();
		m=0;
		c.clear();
		v.clear();
		
		for(i=0;i<l;i++)
		{
			if(n[i]!=' '&&((int)n[i]>=32)&&((int)n[i]<=128))
			{
				c[n[i]]=1;
				for(j=i+1;j<l;j++)
				{
              	  if(n[i]==n[j])
					{
                  	  c[(int)n[i]]++;
                  	  n[j]=' ';

               	 	}

				}
			}
		}
        copy(c.begin(), c.end(), back_inserter(v));

    	sort(v.begin(), v.end(), cmp);
    	if(f++>1)
    	    cout<<endl;

    	for(int i = 0; i < v.size(); ++i)
        	cout<<v[i].first <<" "<<v[i].second<<endl;
	}

	return 0;
}

Posted: **Fri Sep 26, 2014 12:18 am**

You should count space = ASCII 32

Posted: **Thu May 07, 2015 7:43 am**

Why I got WA?

http://codepad.org/K3hi1mIC

OJ Board

10062 - Tell me the frequencies!

Re: 10062 - Tell Me the Frequencies!

Re: 10062 - Tell Me the Frequencies!

Re: 10062 - Tell Me the Frequencies!

Re: 10062 - Tell Me the Frequencies!

Re: 10062 - Tell Me the Frequencies!

Re: 10062 - Tell Me the Frequencies!

Re: 10062 - Tell Me the Frequencies!

Re: 10062 - Tell Me the Frequencies!

10062 - Tell me the frequencies!

Re: 10062 - Tell me the frequencies!

Re: 10062 - Tell me the frequencies!