Compilare: main.cpp: In function 'int main()': main.cpp:83:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<marcei.size(); ++i) ~^~~~~~~~~~~~~~ main.cpp:89:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<marcei.size(); ++i) ~^~~~~~~~~~~~~~ main.cpp:114:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nrmarcei[i][j]==marcei.size() && f) ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:120:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (nrmarcei[i][j]==marcei.size() && insula[i][j]=='@') ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:129:22: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (okk=2) ^ main.cpp:186:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<marcei.size(); ++i) ~^~~~~~~~~~~~~~