Compilare: user.cpp: In function ‘void Build()’: user.cpp:34:67: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = gcd( rmq[k][i][j], rmq[k-1][i+(1<<k-1)][j] ); ^ user.cpp:35:70: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = gcd( rmq[k][i][j], rmq[k-1][i][j+(1<<k-1)] ); ^ user.cpp:36:67: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = gcd( rmq[k][i][j], rmq[k-1][i+(1<<k-1)][j+(1<<k-1)] ); ^ user.cpp:36:79: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = gcd( rmq[k][i][j], rmq[k-1][i+(1<<k-1)][j+(1<<k-1)] ); ^ user.cpp: In function ‘int main()’: user.cpp:89:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("xcmmdc.in","r",stdin); ^ user.cpp:90:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("xcmmdc.out","w",stdout); ^ user.cpp:94:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&N,&M,&K,&Q); ^ user.cpp:97:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i][j]); ^ user.cpp:104:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&L); ^