### It says compiler error

Posted:

**Thu May 25, 2006 9:08 am**Could anyone tell me why this code doesn't compile.

Code: Select all

```
#include <iostream>
#include <algorithm>
#include <map>
#include <cstdio>
using namespace std;
int N, R;
map < string, int > ind;
int adj[200][200] = { false };
void floyd_warshall() {
for( int k = 0; k < N; ++k )
for( int j = 0; j < N; ++j )
for( int i = 0; i < N; ++i )
if( adj[i][k] != 0 && adj[k][j] != 0 ) {
adj[i][j] >?= min( adj[i][k], adj[k][j] );
//adj[i][j] = adj[j][i] = min( adj[i][j], adj[j][i] );
}
}
int main() {
int cnt = 1;
scanf( "%d %d", &N, &R );
while( !( N == 0 && R == 0 ) ) {
int w, n = 0;
string s1, s2;
memset( adj, 0, sizeof( adj ) );
ind.clear();
for( int i = 0; i < R; ++i ) {
cin >> s1 >> s2 >> w;
if( ind.count(s1) == 0 ) ind[s1] = n++;
if( ind.count(s2) == 0 ) ind[s2] = n++;
adj[ind[s1]][ind[s2]] = adj[ind[s2]][ind[s1]] = w;
}
floyd_warshall();
cin >> s1 >> s2;
cout << "Scenario #" << cnt++ << endl;
cout << adj[ind[s1]][ind[s2]] << " tons" << endl << endl;
scanf( "%d %d", &N, &R );
}
return 0;
}
```