Compilare: user.cpp: In function ‘void build_rmq()’: user.cpp:12:36: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] lg[i] = lg[i-1] + int(!(i&i-1)); ^ user.cpp:15:28: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] for(int i=1; i<=n-(1<<k-1); ++i) { ^ user.cpp:16:28: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] for(int j=1; j<=n-(1<<k-1); ++j) { ^ user.cpp:20:46: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(rmq[k][i][j] < rmq[k-1][i][j+(1<<k-1)]) ^ user.cpp:21:47: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = rmq[k-1][i][j+(1<<k-1)]; ^ user.cpp:23:43: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(rmq[k][i][j] < rmq[k-1][i+(1<<k-1)][j]) ^ user.cpp:24:44: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = rmq[k-1][i+(1<<k-1)][j]; ^ user.cpp:26:43: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(rmq[k][i][j] < rmq[k-1][i+(1<<k-1)][j+(1<<k-1)]) ^ user.cpp:26:55: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(rmq[k][i][j] < rmq[k-1][i+(1<<k-1)][j+(1<<k-1)]) ^ user.cpp:27:44: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = rmq[k-1][i+(1<<k-1)][j+(1<<k-1)]; ^ user.cpp:27:56: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = rmq[k-1][i+(1<<k-1)][j+(1<<k-1)]; ^ user.cpp: In function ‘int main()’: user.cpp:49:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("plantatie.in", "r", stdin); ^ user.cpp:50:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("plantatie.out", "w", stdout); ^ user.cpp:53:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:56:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&rmq[0][i][j]); ^ user.cpp:61:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&x,&y,&l); ^