Compilare: user.cpp: In function ‘void solve()’: user.cpp:85:27: warning: narrowing conversion of ‘box.std::pair<int, int>::first’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q[e++] = {box.first, box.second, i}; ^ user.cpp:85:38: warning: narrowing conversion of ‘box.std::pair<int, int>::second’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q[e++] = {box.first, box.second, i}; ^ user.cpp:85:20: warning: narrowing conversion of ‘i’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] q[e++] = {box.first, box.second, i}; ^ user.cpp:96:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(dp[lin][col][dir] == 0) ^ user.cpp:97:24: warning: narrowing conversion of ‘lin’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q[e++] = {lin, col, dir}; ^ user.cpp:97:24: warning: narrowing conversion of ‘col’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:98:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[lin][col][dir] = 1; ^ user.cpp:103:69: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(in(lin, col) && mat[lin][col] != '#' && ok(l + dl[dir], c + dc[dir], lin, col)) { ^ user.cpp:103:82: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(in(lin, col) && mat[lin][col] != '#' && ok(l + dl[dir], c + dc[dir], lin, col)) { ^ user.cpp:105:28: warning: narrowing conversion of ‘l’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q[e++] = {l, c, i}; ^ user.cpp:105:28: warning: narrowing conversion of ‘c’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:105:28: warning: narrowing conversion of ‘i’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] user.cpp: In function ‘int main()’: user.cpp:117:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&t); ^ user.cpp:120:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&n,&m); ^ user.cpp:122:40: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(mat[i] + 1, MAXN, fi); ^