Compilare: main.cpp: In function 'void D(int, int)': main.cpp:8:12: warning: unused variable 'j' [-Wunused-variable] int u=0,i,j; ^ main.cpp: In function 'int main()': main.cpp:60:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=0;i<n-1;i++) ^~~ main.cpp:62:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(D(1,0),i=1;i<=o;++i) ^~~ main.cpp:53:91: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("heavypath.in","r",stdin),freopen("heavypath.out","w",stdout),scanf("%d%d",&n,&m); ^ main.cpp:53:91: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:53:91: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:55:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",v+i); ^ main.cpp:57:48: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&g[i],&f[i]),++w[g[i]],++w[f[i]]; ^ main.cpp:68:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&t,&x,&y); ^