Compilare: user.cpp: In function ‘int main()’: user.cpp:75:9: warning: unused variable ‘aux’ [-Wunused-variable] int aux,i,p1,p2; ^~~ user.cpp:75:13: warning: unused variable ‘i’ [-Wunused-variable] int aux,i,p1,p2; ^ user.cpp:75:15: warning: unused variable ‘p1’ [-Wunused-variable] int aux,i,p1,p2; ^~ user.cpp:75:18: warning: unused variable ‘p2’ [-Wunused-variable] int aux,i,p1,p2; ^~ user.cpp:77:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in","r",stdin); ^ user.cpp:78:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out","w",stdout); ^ user.cpp:80:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", p + 1); m = strlen(p + 1); ^ user.cpp:81:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s + 1); n = strlen(s + 1); ^