Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:69:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < total_sum.size(); ++i) ^ user.cpp:72:50: error: ‘memset’ was not declared in this scope memset(acquirable_sum, 0, sizeof(acquirable_sum)); ^ user.cpp:122:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < total_sum.size(); ++i) ^ user.cpp:135:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < B[i][j].size(); ++k) ^ user.cpp:39:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("triunghi.in", "r", stdin); ^ user.cpp:40:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("triunghi.out", "w", stdout); ^