Compilare: main.cpp: In function 'int main()': main.cpp:70:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ssm.in", "r", stdin); ^ main.cpp:71:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ssm.out", "w", stdout); ^ main.cpp: In function 'void solve(int*, int)': main.cpp:66:49: warning: 'end' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << bestSum << " " << beg+1 << " " << end+1; ^ main.cpp:66:38: warning: 'beg' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << bestSum << " " << beg+1 << " " << end+1; ^~~