Compilare: user.cpp: In function ‘bool cmp(carte, carte)’: user.cpp:7:67: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] bool cmp(carte A, carte B){return A.num < B.num || A.num == B.num && A.pers < B.pers;} ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= V.size(); i++){ ~~^~~~~~~~~~~ user.cpp:66:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= V.size(); i++){ ~~^~~~~~~~~~~ user.cpp:20:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &n, &s); ^ user.cpp:22:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d", &x), A[x]++; ^ user.cpp:24:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d", &x), B[x]++; ^