c++ - error: invalid types 'int[int]' for array subscript -

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#include <iostream> using namespace std; int t,n,k,m,i,j; int l[100002],r[100002],c[100002],a[100002],total=0; int swap( int *a, int *b) {     int temp=*a;     *a=*b;     *b=temp; } int pivot( int l, int h) {     int x=c[h],i=l,j=l-1,temp;     for(i=l;i<h;i++)     {         if(c[i]<x)         {             j++;             swap(&c[i],&c[j]);             swap(&r[i],&r[j]);             swap(&l[i],&l[j]);         }     }     j++;     swap(&c[h],&c[j]);     swap(&l[h],&l[j+1]);     swap(&r[h],&r[j+1]);     return j; } int quick( int l, int h) {     int p;     if(l<h)     {         p=pivot(l,h);         quick(l,p-1);         quick(p+1,h);     } } int main() {     cin>>t;     while(t--)     {         total=0;         cin>>n>>k>>m;         for(i=1;i<=n;i++)         {             cin>>a[i];             total+=a[i];         }         for(i=1;i<=m;i++)             cin>>l[i]>>r[i]>>c[i];         quick(1,m);         for(i=1;i<=m;i++)             cout<<l[i]<<r[i]<<c[i]<<endl;     }     return 0; }

in above code getting following error.

prog.cpp: in function 'int pivot(int, int)': prog.cpp:21:13: error: invalid types 'int[int]' array subscript     swap(&l[i],&l[j]);              ^ prog.cpp:21:19: error: invalid types 'int[int]' array subscript     swap(&l[i],&l[j]);                    ^ prog.cpp:26:11: error: invalid types 'int[int]' array subscript   swap(&l[h],&l[j+1]);            ^ prog.cpp:26:19: error: invalid types 'int[int]' array subscript   swap(&l[h],&l[j+1]);                    ^

can figure out error is? , wondering why getting error in array l not in r or c. please explain also.

here link of above program.

http://ideone.com/k1exek

l function parameter of type int, hides global variable same name.


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