foo.cpp: In function 'int main()':
foo.cpp:32:19: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
                   if(i - k < 0) break; tension(f[i][j][l], f[i-k][j][l] + y);
                   ^~
foo.cpp:32:40: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
                   if(i - k < 0) break; tension(f[i][j][l], f[i-k][j][l] + y);
                                        ^~~~~~~
foo.cpp:34:19: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
                   if(j - k < 0) break; tension(f[i][j][l], f[i][j-k][l] + y);
                   ^~
foo.cpp:34:40: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
                   if(j - k < 0) break; tension(f[i][j][l], f[i][j-k][l] + y);
                                        ^~~~~~~