scara2.cpp: In function 'int main()': scara2.cpp:30: warning: suggest parentheses around '&&' within '||' scara2.cpp:35: warning: suggest parentheses around '&&' within '||' scara2.cpp:42: warning: suggest parentheses around '&&' within '||' scara2.cpp:47: warning: suggest parentheses around '&&' within '||' scara2.cpp:56: warning: suggest parentheses around '&&' within '||' scara2.cpp:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result scara2.cpp:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result scara2.cpp:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result scara2.cpp:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result scara2.cpp:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result scara2.cpp:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result scara2.cpp:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result scara2.cpp:54: warning: 'poz' may be used uninitialized in this function