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View Compilation Error

0_0_38465957_14791.c: In function 'main':
0_0_38465957_14791.c:5:38: error: expected expression before '/' token
     while (scanf("%d", &n) != EOF) { // read input until end of file
                                      ^
0_0_38465957_14791.c:6:25: error: expected expression before '/' token
         int binary[32]; // array to store binary digits
                         ^
0_0_38465957_14791.c:8:25: error: expected expression before '/' token
         while (n > 0) { // convert decimal to binary
                         ^
0_0_38465957_14791.c:11:13: error: 'i' undeclared (first use in this function)
             i++;
             ^
0_0_38465957_14791.c:11:13: note: each undeclared identifier is reported only once for each function it appears in
0_0_38465957_14791.c:13:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int j = i - 1; j >= 0; j--) { // print binary digits in reverse order
         ^
0_0_38465957_14791.c:13:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_38465957_14791.c:13:44: error: expected expression before '/' token
         for (int j = i - 1; j >= 0; j--) { // print binary digits in reverse order
                                            ^
0_0_38465957_14791.c:16:23: error: expected expression before '/' token
         printf("\n"); // print newline after each binary number
                       ^


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