Compilare: main.cpp: In function 'int main()': main.cpp:180:28: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets (s , 60010 , fin); ^ main.cpp:186:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d\n",&cuv); ^ main.cpp:190:33: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets (s , 800010 , fin); ^ main.cpp:202:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&q); ^ main.cpp:206:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&tip); ^ main.cpp:209:52: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d %c %d%d",&poz,&c,&a,&b); ^ main.cpp:221:52: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d%d",&poz,&ind,&a,&b); ^ main.cpp:176:16: warning: iteration 800009 invokes undefined behavior [-Waggressive-loop-optimizations] pu1[i] = (pu1[i - 1] * ('z' - 'a'))%MOD1; ^ main.cpp:175:20: note: within this loop for (i = 1 ; i <= DIMN ; i++){ ^