Compilare: main.cpp: In function 'int main()': main.cpp:23:21: warning: unused variable 'c' [-Wunused-variable] int n, d, i, j, c, D, st, dr, ok=0, mij, poz1, poz2, nr=0; ^ main.cpp:23:27: warning: unused variable 'st' [-Wunused-variable] int n, d, i, j, c, D, st, dr, ok=0, mij, poz1, poz2, nr=0; ^~ main.cpp:23:31: warning: unused variable 'dr' [-Wunused-variable] int n, d, i, j, c, D, st, dr, ok=0, mij, poz1, poz2, nr=0; ^~ main.cpp:23:35: warning: unused variable 'ok' [-Wunused-variable] int n, d, i, j, c, D, st, dr, ok=0, mij, poz1, poz2, nr=0; ^~ main.cpp:23:41: warning: unused variable 'mij' [-Wunused-variable] int n, d, i, j, c, D, st, dr, ok=0, mij, poz1, poz2, nr=0; ^~~ main.cpp:70:30: warning: 'poz2' may be used uninitialized in this function [-Wmaybe-uninitialized] p[nr].p2=w[poz2].poz; ~~~~~~~~^~~ main.cpp:69:30: warning: 'poz1' may be used uninitialized in this function [-Wmaybe-uninitialized] p[nr].p1=v[poz1].poz; ~~~~~~~~^~~