Compilare: user.cpp: In function ‘int main()’: user.cpp:17:13: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if ((A < C&&B < D || B < C&&A < D) || ^ user.cpp:18:10: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] (A < D&&B < E || B < D&&A < E) || ^ user.cpp:19:10: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] (A < C&&B < E || B < C&&A < E) ^ user.cpp:10:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &teste); ^ user.cpp:15:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d%d%d", &A, &B, &C, &D, &E); ^