Compilare: user.cpp: In function ‘int main()’: user.cpp:26:9: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if (S[i].a-S[i-1].b>maxS) ^~ user.cpp:30:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ if(OK==1) ^~ user.cpp:11:53: warning: unused variable ‘imin’ [-Wunused-variable] long long int n,x,maxS=LONG_MIN,i,minS=LONG_MAX,imin,imax,aux=0,min1,max1,OK; ^~~~ user.cpp:11:58: warning: unused variable ‘imax’ [-Wunused-variable] long long int n,x,maxS=LONG_MIN,i,minS=LONG_MAX,imin,imax,aux=0,min1,max1,OK; ^~~~ user.cpp:33:30: warning: ‘min1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (S[min1-1].a==S[min1].a) ~~~~~~~~^