Compilare: user.cpp: In function ‘void distDragoni()’: user.cpp:29:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < dragoni.size(); ++i) { ^ user.cpp:40:62: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(validIndexes(newI, newJ) && !dist[newI][newJ] && matrix[newI][newJ] == EMPTY ^ user.cpp: In function ‘int main()’: user.cpp:99:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.in", "r", stdin); ^ user.cpp:100:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.out", "w", stdout); ^ user.cpp:102:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%*c", &r, &c); ^ user.cpp:104:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", matrix[i]); ^