Compilare: main.cpp: In function 'int main()': main.cpp:7:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:9:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(i=2;i<=n;i++) ^~~ main.cpp:6:82: 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),freopen("rmq.out","w",stdout),scanf("%d%d",&n,&m); ^ main.cpp:6:82: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:6:82: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:8:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&j),b[0][i]=j; ^ main.cpp:15:82: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&i,&j),n=c[j-i+1],printf("%d\n",N(b[n][i],b[n][j+1-(1<<n)])); ^