Compilare: main.cpp: In function 'int main()': main.cpp:42:15: warning: unused variable 'x' [-Wunused-variable] int i, j, x, y, s, t, k, x_aa, y_aa, x1, y1, x2, y2, distanta; ^ main.cpp:42:18: warning: unused variable 'y' [-Wunused-variable] int i, j, x, y, s, t, k, x_aa, y_aa, x1, y1, x2, y2, distanta; ^ main.cpp:42:21: warning: unused variable 's' [-Wunused-variable] int i, j, x, y, s, t, k, x_aa, y_aa, x1, y1, x2, y2, distanta; ^ main.cpp: In function 'void aflaDistante(int)': main.cpp:109:9: warning: unused variable 'n' [-Wunused-variable] int n, i, j; ^ main.cpp:109:15: warning: unused variable 'j' [-Wunused-variable] int n, i, j; ^ main.cpp: In function 'void computeLCA()': main.cpp:159:34: warning: suggest parentheses around assignment used as truth value [-Wparentheses] for( i = 1; p = ( 1 << i ) < timp; ++i ){ ^~~~ main.cpp: In function 'int main()': main.cpp:39:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pirati.in","r",stdin); ^ main.cpp:40:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pirati.out","w",stdout); ^ main.cpp:44:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%*c",&n,&m,&t); ^ main.cpp:46:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",q); ^ main.cpp:76:42: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&x1,&y1,&x2,&y2); ^