Compilare: main.cpp: In function 'int main()': main.cpp:24:26: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] for(int j=1;j+(1<<i-1)<=n;++j) ~^~ main.cpp:25:53: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] rmq[i][j]=min(rmq[i-1][j],rmq[i-1][j+(1<<i-1)]); ~^~ main.cpp:27:10: warning: statement has no effect [-Wunused-value] for(m;m;m--){ ^ main.cpp:13:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rmq.in","r",stdin); ^ main.cpp:14:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rmq.out","w",stdout); ^ main.cpp:16:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ main.cpp:18:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&rmq[0][i]); ^ main.cpp:29:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^