Stack Program

I need help defining what I am doing wrong in the following task and showing me a correct/working solution. I have created a "main.c" file with some code but something goes wrong with it. Below is the definition of the task at hand: "A program in C, which will identify the complex proposals within a text file that contains code in a language C. The program starts when you ask the user to enter the name of the file you wish to open. Then the program have to inform the startpoint that starts each complex sentence (ie an open brace '{') and endpoint of the specific complex proposal (ie a closed bracket '}'). ------------Example 1: File with name “test1.c” with code: #include int main () { int i; for (i=0;i<10;i++) { printf("%d\n",i); }} ---------------------------------------- Program Output: Give name of file: test1.c 1st complex sentence: Opens at line 3 Closes at line 9 2nd complex sentence: Opens at line 6 Closes at line 8 ---------------------------------------------------- The program should work correctly even if there are multiple hooks in the same row. ---------------Example 2: File with name “test2.c” with code: #include int main () { int i; for (i=0;i<10;i++) {{ printf("%d\n",i); } }} -------------------------------------------------- Program Output: Give name of file: test2.c 1st complex sentence: Opens at line 3 Closes at line 9 (brackets 2) 2nd complex sentence: Opens at line 6 (brackets 1) Closes at line 9 (brackets 1) 3rd complex sentence: Opens at line 6 (brackets 2) Closes at line 8