Compilare: main.cpp: In function 'int main()': main.cpp:47:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rec.in", "r", stdin); ^ main.cpp:48:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rec.out", "w", stdout); ^ main.cpp:50:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &s, &n, &f); ^ main.cpp:66:11: warning: 'cur' may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d\n", dp[cur][s]); ~~~~~~^~~~~~~~~~~~~~~~~~~~