Compilare: main.cpp: In function 'int main()': main.cpp:77:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < v[nod].size() ; i++){ ~~^~~~~~~~~~~~~~~ main.cpp:53:25: warning: variable 'ni' set but not used [-Wunused-but-set-variable] int n , m , k , q , ni , i , x , nod , vecin , cost , y, z , mom , rx , ry , j; ^~ main.cpp:53:66: warning: unused variable 'mom' [-Wunused-variable] int n , m , k , q , ni , i , x , nod , vecin , cost , y, z , mom , rx , ry , j; ^~~ main.cpp:53:72: warning: unused variable 'rx' [-Wunused-variable] int n , m , k , q , ni , i , x , nod , vecin , cost , y, z , mom , rx , ry , j; ^~ main.cpp:53:77: warning: unused variable 'ry' [-Wunused-variable] int n , m , k , q , ni , i , x , nod , vecin , cost , y, z , mom , rx , ry , j; ^~ main.cpp:53:82: warning: unused variable 'j' [-Wunused-variable] int n , m , k , q , ni , i , x , nod , vecin , cost , y, z , mom , rx , ry , j; ^ main.cpp:54:9: warning: unused variable 'powe' [-Wunused-variable] int powe , a , b, ti; ^~~~ main.cpp:55:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d%d",&n,&m,&k,&q); ^ main.cpp:60:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x); ^ main.cpp:66:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&x,&y,&z); ^ main.cpp:134:44: 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 , &ti); ^