View Code of Problem 16

int main()
{
	char num[10][7]={"zero","one","two","three","four","five","six","seven","eight","nine"};
	int t,flag,sum,len=0,a[10]={0};
	char str[7];
	scanf("%d",&t);
	while(t--)
	{
		sum=0;
		scanf("%d",&flag);
		while(scanf("%s",str)!=EOF)
		{	
			if(str[0]>='0'&&str[0]<='9')
			{	
				len=strlen(str);
				for(int i=0;i<len;i++)
				{
					a[i]=str[i]-'0';	
				}
			}
			else if(str[0]=='+')
			{
				for(int i=0;i<len;i++)
				{
					sum+=a[i]*pow(10,len-i-1);
				}
				len=0;
			}
			else if(str[0]=='=')
			{
				for(int i=0;i<len;i++)
				{
					sum+=a[i]*pow(10,len-i-1);
				}
				if(flag==0)
				{
					printf("%d\n",sum);
				}
				else
				{
					while(sum>=10)
					{
						printf("%s ",num[sum/10]);
						sum%=10;
					}
					printf("%s\n",num[sum]);		
				}
				len=0;
				break;
			}
			else
			{
				for(int i=0;i<10;i++)
				{
					if(strcmp(str,num[i])==0)
					{
						a[len++]=i;
						break;
					}
				}
			}
		}	
	}
} 
/*
Main.c: In function 'main':
Main.c:6:2: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
  scanf("%d",&t);
  ^~~~~
Main.c:6:2: warning: incompatible implicit declaration of built-in function 'scanf'
Main.c:6:2: note: include '<stdio.h>' or provide a declaration of 'scanf'
Main.c:1:1:
+#include <stdio.h>
 int main()
Main.c:6:2:
  scanf("%d",&t);
  ^~~~~
Main.c:11:26: error: 'EOF' undeclared (first use in this function)
   while(scanf("%s",str)!=EOF)
                          ^~~
Main.c:11:26: note: 'EOF' is defined in header '<stdio.h>'; did you forget to '#include <stdio.h>'?
Main.c:11:26: note: each undeclared identifier is reported only once for each function it appears in
Main.c:15:9: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     len=strlen(str);
         ^~~~~~
Main.c:15:9: warning: incompatible implicit declaration of built-in function 'strlen'
Main.c:15:9: note: include '<string.h>' or provide a declaration of 'strlen'
Main.c:1:1:
+#include <string.h>
 int main()
Main.c:15:9:
     len=strlen(str);
         ^~~~~~
Main.c:25:16: warning: implicit declaration of function 'pow' [-Wimplicit-function-declaration]
      sum+=a[i]*pow(10,len-i-1);
                ^~~
Main.c:25:16: warning: incompatible implicit declaration of built-in function 'pow'
Main.c:25:16: note: include '<math.h>' or provide a declaration of 'pow'
Main.c:1:1:
+#include <math.h>
 int main()
Main.c:25:16:
      sum+=a[i]*pow(10,len-i-1);
                ^~~
Main.c:33:16: warning: incompatible implicit declaration of built-in function 'pow'
      sum+=a[i]*pow(10,len-i-1);
                ^~~
Main.c:33:16: note: include '<math.h>' or provide a declaration of 'pow'
Main.c:37:6: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
      printf("%d\n",sum);
      ^~~~~~
Main.c:37:6: warning: incompatible implicit declaration of built-in function 'printf'
Main.c:37:6: note: include '<stdio.h>' or provide a declaration of 'printf'
Main.c:43:7: warning: incompatible implicit declaration of built-in function 'printf'
       printf("%s ",num[sum/10]);
       ^~~~~~
Main.c:43:7: note: include '<stdio.h>' or provide a declaration of 'printf'
Main.c:46:6: warning: incompatible implicit declaration of built-in function 'printf'
      printf("%s\n",num[sum]);
      ^~~~~~
Main.c:46:6: note: include '<stdio.h>' or provide a declaration of 'printf'
Main.c:55:9: warning: implicit declaration of function 'strcmp' [-Wimplicit-function-declaration]
      if(strcmp(str,num[i])==0)
         ^~~~~~
*/