Compilare: main.cpp: In function 'int main()': main.cpp:17:11: warning: operation on 'j' may be undefined [-Wsequence-point] v[++j] = v[j-1] + j-1; ^~~ main.cpp:17:11: warning: operation on 'j' may be undefined [-Wsequence-point] main.cpp:6:40: warning: unused variable 'temp' [-Wunused-variable] int n, k, i, j = 1, x, maxi, minj, temp, ^~~~ main.cpp:8:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("farfurii.in", "r", stdin); ^ main.cpp:9:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("farfurii.out", "w", stdout); ^ main.cpp:10:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:35:26: warning: 'maxi' may be used uninitialized in this function [-Wmaybe-uninitialized] swap(poz[rez[maxi]], poz[rez[minj]]); ~~~~~~~~^