Compilare: main.cpp: In function 'int main()': main.cpp:55:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int ii = 0; ii < v[ dp[ i ][ j ] ].size(); ii++ ){ ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < v[ x ].size(); i++ ){ ~~^~~~~~~~~~~~~~~ main.cpp:39:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin,"%d%d%d ", &n, &m, &k ); ^ main.cpp:41:38: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets( a[ i ] + 1, MAX, fin ); ^