Compilare: user.cpp: In function ‘long long unsigned int Find(int, int)’: user.cpp:25:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Max[i][mijl] <= val) { ^ user.cpp: In function ‘bool Chk(int)’: user.cpp:47:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1;i <= R && i <= k;i++) { ^ user.cpp: In function ‘int main()’: user.cpp:63:35: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(f, "%d", &mat[1][i]); ^ user.cpp:58:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%llu%d", &N, &M, &C, &R); ^ user.cpp:60:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d%d%d", &x, &y, &z, &w, &u); ^ user.cpp:63:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &mat[1][i]); ^ user.cpp:65:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%llu", &mat[j][1]); ^