Compilare: user.cpp: In function ‘void ecuatie(char*, int&, int&)’: user.cpp:26:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(s[i]=='x') ^ user.cpp:8:25: warning: unused variable ‘j’ [-Wunused-variable] int i,n,nr=0,semn=1,j; ^ user.cpp: In function ‘int main()’: user.cpp:47:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ecuatii2.in","r",stdin); ^ user.cpp:48:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ecuatii2.out","w",stdout); ^ user.cpp:50:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&T); ^ user.cpp:53:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",e); ^