Compilare: user.cpp: In function ‘void Build()’: user.cpp:24:67: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = max( rmq[k][i][j], rmq[k-1][i+(1<<k-1)][j] ); ^ user.cpp:25:70: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = max( rmq[k][i][j], rmq[k-1][i][j+(1<<k-1)] ); ^ user.cpp:26:67: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = max( rmq[k][i][j], rmq[k-1][i+(1<<k-1)][j+(1<<k-1)] ); ^ user.cpp:26:79: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[k][i][j] = max( rmq[k][i][j], rmq[k-1][i+(1<<k-1)][j+(1<<k-1)] ); ^ user.cpp: In function ‘int main()’: user.cpp:31:38: 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:32:40: 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:36:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&N,&M); ^ user.cpp:38:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(j = 1; j <= N; ++j) scanf("%d",&v[i][j]); ^ user.cpp:43:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&i,&j,&k); ^