第6章循环7、重新安排程序square3.c
int i=1, square=1, a;
scanf("%d", &a);
for(;i<=a; i++, square++){
printf("%d %d\n", i, square*square);
}
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int i, n, odd, square;
printf("This program prints a table of squares. \n");
printf("Enter number of entries in table: ");
scanf("%d", &n);
i = 1;
odd = 3;
for(square = 1; i <= n; odd += 2){
printf("%10d%10d\n", i, square);
++i;
square += odd;
}

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