Compilare: user.cpp: In function ‘int main()’: user.cpp:19:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<sir.size();j++) ~^~~~~~~~~~~ user.cpp:27:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int g=j;g<sir.size();g++) ~^~~~~~~~~~~ user.cpp:47:17: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int g=dr;g>=st;g--) ^~~ user.cpp:49:21: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ if(ap[i][0]==0) ^~