Compilare: main.cpp: In function 'void Lee(Andrei, const int&, const int&, int)': main.cpp:20:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if( nr.l >= 0 && nr.l < n && nr.c >= 0 && nr.c < m && dis[ nr.l ][ nr.c ] > val + ( a[ el.l ][ el.c ] != a[ nr.l ][ nr.c ] ) ) ^ main.cpp: In function 'int main()': main.cpp:36:45: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'short int*' [-Wformat=] fscanf( fin, "%d", &a[ l ][ c ] ); ^ main.cpp:33:70: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d%d%d%d", &n, &m, &st.l, &st.c, &sf.l, &sf.c ); ^ main.cpp:36:46: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &a[ l ][ c ] ); ^