Compilare: user.cpp: In function ‘int task_1(int, int, int)’: user.cpp:21:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(st==dr) ^ user.cpp: In function ‘int task_2(int, int, int)’: user.cpp:31:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(st==dr) ^ user.cpp: In function ‘int task_3(int, int, int)’: user.cpp:41:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(st==dr) ^ user.cpp: In function ‘void read()’: user.cpp:13:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ user.cpp:15:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&a[i]); ^ user.cpp:16:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&m); ^ user.cpp: In function ‘int main()’: user.cpp:50:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.in","r",stdin); ^ user.cpp:51:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.out","w",stdout); ^ user.cpp:56:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&tip,&x); ^