Compilare: main.cpp: In function 'int main()': main.cpp:65:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<g[i].size(); j++) ~^~~~~~~~~~~~ main.cpp:81:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<intro.size(); i++) ~^~~~~~~~~~~~~ main.cpp:82:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<gcomp[intro[i]].size(); j++) ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:95:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<intro.size(); i++) ~^~~~~~~~~~~~~ main.cpp:100:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<outro.size(); i++) ~^~~~~~~~~~~~~ main.cpp:107:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<intro.size() && j<outro.size()){ ~^~~~~~~~~~~~~ main.cpp:107:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<intro.size() && j<outro.size()){ ~^~~~~~~~~~~~~ main.cpp:108:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<intro.size() && viz[intro[i]]==1) ~^~~~~~~~~~~~~ main.cpp:110:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<outro.size() && viz[outro[j]]==1) ~^~~~~~~~~~~~~ main.cpp:112:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<intro.size() && j<outro.size()){ ~^~~~~~~~~~~~~ main.cpp:112:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<intro.size() && j<outro.size()){ ~^~~~~~~~~~~~~ main.cpp:121:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; i<intro.size(); i++){ ~^~~~~~~~~~~~~ main.cpp:125:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; j<outro.size(); j++){ ~^~~~~~~~~~~~~ main.cpp:43:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] { freopen("plan.in", "r", stdin); ^ main.cpp:44:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("plan.out", "w", stdout); ^ main.cpp:46:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:48:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]