Compilare: main.cpp: In function 'int main()': main.cpp:39:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; right[line] <= vect[line].size() && abs(currentPairPos - vect[line][right[line]]) <= k; right[line]++) { ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:40:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (vizitat[line][vect[line][right[line]]] == 0 && a[line][vect[line][right[line]]] == '0') ^~ main.cpp:42:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' val[line][vect[line][right[line]]] = val[currentPair.first][currentPair.second] + 1; ^~~