Compilare: main.cpp: In function 'int main()': main.cpp:78:7: warning: unused variable 'dif' [-Wunused-variable] int dif; ^~~ main.cpp:76:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pod.in", "r", stdin); ^ main.cpp:77:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pod.out", "w", stdout); ^ main.cpp:80:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &m, &k); ^ main.cpp:82:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &poz[i]); ^