Compilare: main.cpp: In function 'int main()': main.cpp:22:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("suma4.in", "r", stdin); ^ main.cpp:23:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("suma4.out", "w", stdout); ^ main.cpp:25:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:27:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &c[i]); ^ main.cpp:83:10: warning: 'nextj' may be used uninitialized in this function [-Wmaybe-uninitialized] jmin = nextj; ~~~~~^~~~~~~ main.cpp:82:10: warning: 'nexti' may be used uninitialized in this function [-Wmaybe-uninitialized] imin = nexti; ~~~~~^~~~~~~