INPUT"vvedite razmer matricy N ",n
DIM b(n,n)
RANDOMIZE TIMER
PRINT"massiv"
FOR i=1 TO n
FOR j=1 TO n
b(i,j)=INT(RND*100)-50
PRINT b(i,j);
NEXT
PRINT
NEXT
FOR i=1 TO n
IF b(i,i) >0 THEN s=s+b(i,i)
NEXT
PRINT"summa polojitelnyh na gl. diagonali=";s