Compilare: user.cpp: In function ‘void init()’: user.cpp:17:48: warning: overflow in implicit constant conversion [-Woverflow] for(int j = 1; j <= n; ++j) a[i][j][1] = inf; ^ user.cpp: In function ‘int main()’: user.cpp:30:35: 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:33:39: 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:39:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &ezz); ^ user.cpp:41:39: 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:22:55: warning: array subscript is above array bounds [-Warray-bounds] for(int i = 1; i <= n; ++i) step[NMAX] = cost[NMAX] = inf; ^ user.cpp:22:42: warning: array subscript is above array bounds [-Warray-bounds] for(int i = 1; i <= n; ++i) step[NMAX] = cost[NMAX] = inf; ^