Compilare: main.cpp: In function 'int main()': main.cpp:71:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:83:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' first=last=1; ^~~~~ main.cpp:19:76: warning: unused variable 'h' [-Wunused-variable] int n,i,j,p,first,last,ql[10008],qc[10008],cnt=0,maxim,maxi=-1,l,c,x,y,h,xx,yy,xxx,yyy; ^ main.cpp:17:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("castel3.in","r",stdin); ^ main.cpp:18:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("castel3.out","w",stdout); ^ main.cpp:141:48: warning: 'yyy' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<x<<" "<<y<<" "<<xxx<<" "<<yyy; ^ main.cpp:141:40: warning: 'xxx' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<x<<" "<<y<<" "<<xxx<<" "<<yyy; ^~~ main.cpp:141:30: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<x<<" "<<y<<" "<<xxx<<" "<<yyy; ^~~ main.cpp:141:22: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<x<<" "<<y<<" "<<xxx<<" "<<yyy; ^~~ main.cpp:91:32: warning: 'maxim' may be used uninitialized in this function [-Wmaybe-uninitialized] maxim++; ^