Code Race/2014.8.20/어르신과어린이

윤석준, 김준석

```// algorithm.cpp : 콘솔 응용 프로그램에 대한 진입점을 정의합니다.
//

#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
char c[255];
int len;
int aa(char *c);
int isMinus(char c);
int _tmain(int argc, _TCHAR* argv[])
{

FILE *f=fopen("input.txt","rt");
int matrix[110][110];
int i,j,max = -0x7fffffff;
int mom=-0x7fffffff;
int a,n,m;
int flag = 0;

fscanf(f,"%d %d",&n,&m);

int k;
for(i=0;i<n;i++)
{
for(j=0;j<m;j++)
{
memset(c,0,255);
fscanf(f,"%s",&c);
k=aa(c);
matrix[i][j]=k;
}
}
for(i=0;i<n;i++)
{
max=-0x7fffffff;
for(j=0;j<m;j++)
{
if(matrix[i][j]>max) max=matrix[i][j];
}
printf("row %d: ",i+1);
if(max==-0x7fffffff)
{
printf("NaN \n");
}
else
{
printf("%d\n",max);
if(mom<max) mom=max;
}

}
for(i=0;i<m;i++)
{
max=-0x7fffffff;
for(j=0;j<n;j++)
{
if(matrix[j][i]>max) max=matrix[j][i];
}
printf("column %d: ",i+1);
if(max==-0x7fffffff)
{
printf("NaN \n");
}
else
{
printf("%d\n",max);
if(mom<max) mom=max;
}

}

printf("matrix: ");
if(mom==-0x7fffffff){
printf("NaN\n");
}
else printf("%d\n", mom);

return 0;
}
int aa(char *c)
{
int flag=0,a;
len = strlen(c);
if(  (c[0]=='-' && len>=2) || c[0]>='0' && c[0]<='9' ) flag=0;
else flag=1;

for(int x=1;x<len;x++)
{
if(!( c[x] >= '0' && c[x] <= '9')){
flag=1;
break;
}
}

if(flag==0) a=atoi(c);

if(flag==0) return a;
int bu;
int sum1=0,sum2=0,x;
int sw=0;

if(c[0]=='-') sw=1;
else if(isdigit(c[0]) ) sum1=0;
else return -0x7fffffff;

for(x=sw;x<len;x++)
{
if(!isdigit(c[x]))
{
if( c[x]=='-' ) bu=1;
else if(c[x]=='+') bu=2;
else if(c[x]=='*') bu=3;
else bu=4;

break;
}
sum1*=10;
sum1+=c[x]-48;
}
if(bu==4) return -0x7fffffff;
if(sw==1) sum1*=(-1);
sw=x+1;
int b=1;
if(c[sw]=='-')
{
b=-1;
sw=sw+1;
}
else if(isdigit(c[sw])) sum2=0;
else return -0x7fffffff;
for(x=sw;x<len;x++)
{
if(!isdigit(c[x]))
{
bu=4;
break;
}
sum2*=10;
sum2+=c[x]-48;
}
if(bu==4) return -0x7fffffff;
sum2*=b;

switch(bu)
{
case 1: return sum1-sum2; break;
case 2: return sum1+sum2; break;
case 3: return sum1*sum2; break;
}
}

```