Compilare: user.cpp: In function ‘int main()’: user.cpp:32:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &h2o); ^ user.cpp:35:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &pos, &q); ^ user.cpp:46:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &ezz); ^ user.cpp:48:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &pos, &q); ^ user.cpp: In function ‘void init()’: user.cpp:24:55: warning: array subscript is above array bounds [-Warray-bounds] for(int i = 1; i <= n; ++i) step[NMAX] = cost[NMAX] = inf; ^ user.cpp:24:42: warning: array subscript is above array bounds [-Warray-bounds] for(int i = 1; i <= n; ++i) step[NMAX] = cost[NMAX] = inf; ^