Compilare: user.cpp: In function ‘bool cmp(pereche, pereche)’: user.cpp:14:52: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return a.cop[0]<b.cop[0] || a.cop[0]==b.cop[0] && a.cop[1]<b.cop[1] || a.cop[0]==b.cop[0] && a.cop[2]<b.cop[2] && a.cop[0]==b.cop[0]; ^ user.cpp:14:116: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return a.cop[0]<b.cop[0] || a.cop[0]==b.cop[0] && a.cop[1]<b.cop[1] || a.cop[0]==b.cop[0] && a.cop[2]<b.cop[2] && a.cop[0]==b.cop[0]; ^ user.cpp: In function ‘int main()’: user.cpp:69:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pluricex.in","r",stdin); ^ user.cpp:71:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d\n", &n, &k, &d); ^ user.cpp:75:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &x); ^ user.cpp:79:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &z); ^ user.cpp:82:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("\n"); ^