#include <stdio.h>
#include <stdlib.h>
#include <time.h>
//Carlo Saccà 3SC
/*programma che:
- legge un codice numerico utente (1..3)
- genera per 3 utenti una tabella 10x10 di numeri casuali (una cifra 0..9)
- legge una cella in formato lettera+numero (es. B 3)
- verifica che l'indice esista e stampa il valore corrispondente della tabella dell'utente*/
int main(void){int u,i,j,riga,col; char r; int m[3][10][10];
scanf("%d",&u);
if(u<1||u>3){printf("utente non valido"); return 0;}
srand((unsigned)time(NULL));
for(i=0;i<3;i=i+1)
for(riga=0;riga<10;riga=riga+1)
for(j=0;j<10;j=j+1)
m[i][riga][j]=rand()%10;
scanf(" %c %d",&r,&col);
/*normalizzo la lettera in maiuscolo*/
if(r>='a'&&r<='j') r=r-32;
/*conversione in indici 0..9: 'A'->0 ... 'J'->9 ; col deve essere 0..9 */
if(r<'A'||r>'J'||col<0||col>9){printf("non esiste"); return 0;}
riga=r-'A';
printf("%d", m[u-1][riga][col]);
return 0;
}
 

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