Compilare: user.cpp: In function ‘int operatie(char*, int, int, char, char)’: user.cpp:26:23: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] else if (s[i]==c1 && ok==1 || s[i]==c2 && ok==1) ^ user.cpp: In function ‘int main()’: user.cpp:73:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[100000]’ [-Wformat=] scanf("%s",&s); ^ user.cpp: In function ‘int rezolv(char*, int, int)’: user.cpp:66:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:71:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.in","r",stdin); ^ user.cpp:72:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.out","w",stdout); ^ user.cpp:73:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s); ^