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- #include<stdio.h>
- #include<string.h>
- #include <math.h>
- int main ()
- {
- char a[10000];
- int lenght,t,i,j,b;
- double c;
- scanf("%d", &t);
- getchar ();
- while(t--)
- {
- gets(a);
- lenght=strlen(a);
- c=sqrt(lenght);
- b=c;
- if(c-b!=0)
- printf("INVALID\n");
- else{
- char x[1000][1000];
- int n=0;
- for(i=0;i<b;i++){
- for(j=0;j<b;j++)
- x[i][j]=a[n++];
- }
- for(i=0;i<b;i++){
- for(j=0;j<b;j++)
- printf("%c", x[j][i]);
- }
- }
- printf("\n");
- }
- return 0;
- }
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