Compilare: main.cpp: In function 'int main()': main.cpp:40:28: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] if ( mn > d[1 << n - 1][j] + cost[j][0] ) //Stefan was here ~~^~~ main.cpp:41:27: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] mn = d[1 << n - 1][j] + cost[j][0]; ~~^~~ main.cpp:15:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &m ); ^ main.cpp:24:44: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &a, &b, &c ); ^